Revert "Revert "DI: Fold constant arguments into a single MDString""

This reverts commit r218918, effectively reapplying r218914 after fixing
an Ocaml bindings test and an Asan crash.  The root cause of the latter
was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a
PR to investigate who requires the loose check (and why).

Original commit message follows.

--

This patch addresses the first stage of PR17891 by folding constant
arguments together into a single MDString.  Integers are stringified and
a `\0` character is used as a separator.

Part of PR17891.

Note: I've attached my testcases upgrade scripts to the PR.  If I've
just broken your out-of-tree testcases, they might help.

llvm-svn: 219010

7 files changed, 40 insertions, 40 deletions

diff --git a/llvm/test/DebugInfo/COFF/asan-module-ctor.ll b/llvm/test/DebugInfo/COFF/asan-module-ctor.ll
index c1d8e75292c..a62604c6000 100644
--- a/llvm/test/DebugInfo/COFF/asan-module-ctor.ll
+++ b/llvm/test/DebugInfo/COFF/asan-module-ctor.ll
@@ -78,14 +78,14 @@ attributes #0 = { nounwind sanitize_address "less-precise-fpmad"="false" "no-fra
 !llvm.module.flags = !{!7, !8}
 !llvm.ident = !{!9}
 
-!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 2} ; [ DW_TAG_compile_unit ] [D:\/asan.c] [DW_LANG_C99]
+!0 = metadata !{metadata !"0x11\0012\00clang version 3.5.0 \000\00\000\00\002", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [D:\/asan.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"asan.c", metadata !"D:\5C"}
 !2 = metadata !{}
 !3 = metadata !{metadata !4}
-!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"foo", metadata !"foo", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @foo, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
-!5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [D:\/asan.c]
-!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !2, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!4 = metadata !{metadata !"0x2e\00foo\00foo\00\001\000\001\000\006\00256\000\001", metadata !1, metadata !5, metadata !6, null, i32 ()* @foo, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
+!5 = metadata !{metadata !"0x29", metadata !1}          ; [ DW_TAG_file_type ] [D:\/asan.c]
+!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !7 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!8 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!8 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
 !9 = metadata !{metadata !"clang version 3.5.0 "}
 !10 = metadata !{i32 2, i32 0, metadata !4, null}
diff --git a/llvm/test/DebugInfo/COFF/asan-module-without-functions.ll b/llvm/test/DebugInfo/COFF/asan-module-without-functions.ll
index 419faa0e0f3..d5af109479b 100644
--- a/llvm/test/DebugInfo/COFF/asan-module-without-functions.ll
+++ b/llvm/test/DebugInfo/COFF/asan-module-without-functions.ll
@@ -45,9 +45,9 @@ define internal void @asan.module_dtor() {
 !llvm.module.flags = !{!3, !4}
 !llvm.ident = !{!5}
 
-!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !2, metadata !2, metadata !2, metadata !"", i32 2} ; [ DW_TAG_compile_unit ] [D:\/asan.c] [DW_LANG_C99]
+!0 = metadata !{metadata !"0x11\0012\00clang version 3.5.0 \000\00\000\00\002", metadata !1, metadata !2, metadata !2, metadata !2, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [D:\/asan.c] [DW_LANG_C99]
 !1 = metadata !{metadata !"asan.c", metadata !"D:\5C"}
 !2 = metadata !{}
 !3 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!4 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!4 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
 !5 = metadata !{metadata !"clang version 3.5.0 "}
diff --git a/llvm/test/DebugInfo/COFF/asm.ll b/llvm/test/DebugInfo/COFF/asm.ll
index 4f07b9033a8..da58583e4c6 100644
--- a/llvm/test/DebugInfo/COFF/asm.ll
+++ b/llvm/test/DebugInfo/COFF/asm.ll
@@ -167,17 +167,17 @@ attributes #2 = { nounwind }
 !llvm.module.flags = !{!9, !10}
 !llvm.ident = !{!11}
 
-!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [D:\/<unknown>] [DW_LANG_C99]
+!0 = metadata !{metadata !"0x11\0012\00clang version 3.5 \000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [D:\/<unknown>] [DW_LANG_C99]
 !1 = metadata !{metadata !"<unknown>", metadata !"D:\5C"}
 !2 = metadata !{i32 0}
 !3 = metadata !{metadata !4}
-!4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"f", metadata !"f", metadata !"", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @f, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
+!4 = metadata !{metadata !"0x2e\00f\00f\00\003\000\001\000\006\00256\000\003", metadata !5, metadata !6, metadata !7, null, void ()* @f, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
 !5 = metadata !{metadata !"asm.c", metadata !"D:\5C"}
-!6 = metadata !{i32 786473, metadata !5}          ; [ DW_TAG_file_type ] [D:\/asm.c]
-!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!6 = metadata !{metadata !"0x29", metadata !5}          ; [ DW_TAG_file_type ] [D:\/asm.c]
+!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !8 = metadata !{null}
 !9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
 !11 = metadata !{metadata !"clang version 3.5 "}
 !12 = metadata !{i32 4, i32 0, metadata !4, null}
 !13 = metadata !{i32 5, i32 0, metadata !4, null}
diff --git a/llvm/test/DebugInfo/COFF/multifile.ll b/llvm/test/DebugInfo/COFF/multifile.ll
index a1a435521b4..018a0c811be 100644
--- a/llvm/test/DebugInfo/COFF/multifile.ll
+++ b/llvm/test/DebugInfo/COFF/multifile.ll
@@ -235,23 +235,23 @@ attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "
 !llvm.module.flags = !{!9, !10}
 !llvm.ident = !{!11}
 
-!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [D:\/<unknown>] [DW_LANG_C99]
+!0 = metadata !{metadata !"0x11\0012\00clang version 3.5 \000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [D:\/<unknown>] [DW_LANG_C99]
 !1 = metadata !{metadata !"<unknown>", metadata !"D:\5C"}
 !2 = metadata !{i32 0}
 !3 = metadata !{metadata !4}
-!4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"f", metadata !"f", metadata !"", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @f, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
+!4 = metadata !{metadata !"0x2e\00f\00f\00\003\000\001\000\006\00256\000\003", metadata !5, metadata !6, metadata !7, null, void ()* @f, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
 !5 = metadata !{metadata !"input.c", metadata !"D:\5C"}
-!6 = metadata !{i32 786473, metadata !5}          ; [ DW_TAG_file_type ] [D:\/input.c]
-!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!6 = metadata !{metadata !"0x29", metadata !5}          ; [ DW_TAG_file_type ] [D:\/input.c]
+!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !8 = metadata !{null}
 !9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
 !11 = metadata !{metadata !"clang version 3.5 "}
 !12 = metadata !{i32 1, i32 0, metadata !13, null}
-!13 = metadata !{i32 786443, metadata !14, metadata !4, i32 0} ; [ DW_TAG_lexical_block ] [D:\/one.c]
+!13 = metadata !{metadata !"0xb\000", metadata !14, metadata !4} ; [ DW_TAG_lexical_block ] [D:\/one.c]
 !14 = metadata !{metadata !"one.c", metadata !"D:\5C"}
 !15 = metadata !{i32 2, i32 0, metadata !16, null}
-!16 = metadata !{i32 786443, metadata !17, metadata !4, i32 0} ; [ DW_TAG_lexical_block ] [D:\/two.c]
+!16 = metadata !{metadata !"0xb\000", metadata !17, metadata !4} ; [ DW_TAG_lexical_block ] [D:\/two.c]
 !17 = metadata !{metadata !"two.c", metadata !"D:\5C"}
 !18 = metadata !{i32 7, i32 0, metadata !13, null}
-!19 = metadata !{i32 8, i32 0, metadata !13, null} ; [ DW_TAG_imported_declaration ]
+!19 = metadata !{i32 8, i32 0, metadata !13, null}
diff --git a/llvm/test/DebugInfo/COFF/multifunction.ll b/llvm/test/DebugInfo/COFF/multifunction.ll
index a47a449f5ab..be0bb692081 100644
--- a/llvm/test/DebugInfo/COFF/multifunction.ll
+++ b/llvm/test/DebugInfo/COFF/multifunction.ll
@@ -354,23 +354,23 @@ attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "
 !llvm.module.flags = !{!11, !12}
 !llvm.ident = !{!13}
 
-!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [D:\/<unknown>] [DW_LANG_C99]
+!0 = metadata !{metadata !"0x11\0012\00clang version 3.5 \000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [D:\/<unknown>] [DW_LANG_C99]
 !1 = metadata !{metadata !"<unknown>", metadata !"D:\5C"}
 !2 = metadata !{i32 0}
 !3 = metadata !{metadata !4, metadata !9, metadata !10}
-!4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"x", metadata !"x", metadata !"", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @x, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [x]
+!4 = metadata !{metadata !"0x2e\00x\00x\00\003\000\001\000\006\00256\000\003", metadata !5, metadata !6, metadata !7, null, void ()* @x, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [x]
 !5 = metadata !{metadata !"source.c", metadata !"D:\5C"}
-!6 = metadata !{i32 786473, metadata !5}          ; [ DW_TAG_file_type ] [D:\/source.c]
-!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!6 = metadata !{metadata !"0x29", metadata !5}          ; [ DW_TAG_file_type ] [D:\/source.c]
+!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !8 = metadata !{null}
-!9 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"y", metadata !"y", metadata !"", i32 7, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @y, null, null, metadata !2, i32 7} ; [ DW_TAG_subprogram ] [line 7] [def] [y]
-!10 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"f", metadata !"f", metadata !"", i32 11, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @f, null, null, metadata !2, i32 11} ; [ DW_TAG_subprogram ] [line 11] [def] [f]
+!9 = metadata !{metadata !"0x2e\00y\00y\00\007\000\001\000\006\00256\000\007", metadata !5, metadata !6, metadata !7, null, void ()* @y, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 7] [def] [y]
+!10 = metadata !{metadata !"0x2e\00f\00f\00\0011\000\001\000\006\00256\000\0011", metadata !5, metadata !6, metadata !7, null, void ()* @f, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 11] [def] [f]
 !11 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!12 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!12 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
 !13 = metadata !{metadata !"clang version 3.5 "}
 !14 = metadata !{i32 4, i32 0, metadata !4, null}
 !15 = metadata !{i32 5, i32 0, metadata !4, null}
-!16 = metadata !{i32 8, i32 0, metadata !9, null} ; [ DW_TAG_imported_declaration ]
+!16 = metadata !{i32 8, i32 0, metadata !9, null}
 !17 = metadata !{i32 9, i32 0, metadata !9, null}
 !18 = metadata !{i32 12, i32 0, metadata !10, null}
 !19 = metadata !{i32 13, i32 0, metadata !10, null}
diff --git a/llvm/test/DebugInfo/COFF/simple.ll b/llvm/test/DebugInfo/COFF/simple.ll
index 6479071c1b3..bb1c6abd36d 100644
--- a/llvm/test/DebugInfo/COFF/simple.ll
+++ b/llvm/test/DebugInfo/COFF/simple.ll
@@ -151,17 +151,17 @@ attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "
 !llvm.module.flags = !{!9, !10}
 !llvm.ident = !{!11}
 
-!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [D:\/<unknown>] [DW_LANG_C99]
+!0 = metadata !{metadata !"0x11\0012\00clang version 3.5 \000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [D:\/<unknown>] [DW_LANG_C99]
 !1 = metadata !{metadata !"<unknown>", metadata !"D:\5C"}
 !2 = metadata !{i32 0}
 !3 = metadata !{metadata !4}
-!4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"f", metadata !"f", metadata !"", i32 3, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @f, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
+!4 = metadata !{metadata !"0x2e\00f\00f\00\003\000\001\000\006\00256\000\003", metadata !5, metadata !6, metadata !7, null, void ()* @f, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [def] [f]
 !5 = metadata !{metadata !"test.c", metadata !"D:\5C"}
-!6 = metadata !{i32 786473, metadata !5}          ; [ DW_TAG_file_type ] [D:\/test.c]
-!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!6 = metadata !{metadata !"0x29", metadata !5}          ; [ DW_TAG_file_type ] [D:\/test.c]
+!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !8 = metadata !{null}
 !9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
 !11 = metadata !{metadata !"clang version 3.5 "}
 !12 = metadata !{i32 4, i32 0, metadata !4, null}
 !13 = metadata !{i32 5, i32 0, metadata !4, null}
diff --git a/llvm/test/DebugInfo/COFF/tail-call-without-lexical-scopes.ll b/llvm/test/DebugInfo/COFF/tail-call-without-lexical-scopes.ll
index 576a34d26d8..92fe3eb28ff 100644
--- a/llvm/test/DebugInfo/COFF/tail-call-without-lexical-scopes.ll
+++ b/llvm/test/DebugInfo/COFF/tail-call-without-lexical-scopes.ll
@@ -61,18 +61,18 @@ attributes #2 = { nounwind }
 !llvm.module.flags = !{!8, !9}
 !llvm.ident = !{!10}
 
-!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 ", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 2} ; [ DW_TAG_compile_unit ] [D:\/test.cpp] [DW_LANG_C_plus_plus]
+!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 \001\00\000\00\002", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [D:\/test.cpp] [DW_LANG_C_plus_plus]
 !1 = metadata !{metadata !"test.cpp", metadata !"D:\5C"}
 !2 = metadata !{}
 !3 = metadata !{metadata !4, metadata !7}
-!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"spam", metadata !"spam", metadata !"", i32 7, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void ()* @"\01?spam@@YAXXZ", null, null, metadata !2, i32 7} ; [ DW_TAG_subprogram ] [line 7] [def] [spam]
-!5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [D:\/test.cpp]
-!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !2, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
-!7 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"bar", metadata !"bar", metadata !"", i32 3, metadata !6, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 true, null, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [local] [def] [bar]
+!4 = metadata !{metadata !"0x2e\00spam\00spam\00\007\000\001\000\006\00256\001\007", metadata !1, metadata !5, metadata !6, null, void ()* @"\01?spam@@YAXXZ", null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 7] [def] [spam]
+!5 = metadata !{metadata !"0x29", metadata !1}          ; [ DW_TAG_file_type ] [D:\/test.cpp]
+!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!7 = metadata !{metadata !"0x2e\00bar\00bar\00\003\001\001\000\006\00256\001\003", metadata !1, metadata !5, metadata !6, null, null, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 3] [local] [def] [bar]
 !8 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!9 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!9 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
 !10 = metadata !{metadata !"clang version 3.5.0 "}
-!11 = metadata !{i32 8, i32 0, metadata !4, null} ; [ DW_TAG_imported_declaration ]
+!11 = metadata !{i32 8, i32 0, metadata !4, null}
 !12 = metadata !{i32 9, i32 0, metadata !4, null}
 !13 = metadata !{i32 4, i32 0, metadata !7, null}
 !14 = metadata !{i32 5, i32 0, metadata !7, null}