Split out header integration tests

These are somewhat arbitrary tests that check if "thing goes fine" when
processing various platform-specific headers.

Also move warn-sysheader.cpp to Misc where the other diagnostics infrastructure
tests live.

File moves only.

llvm-svn: 207936

1 files changed, 33 insertions, 0 deletions

diff --git a/clang/test/Misc/warn-sysheader.cpp b/clang/test/Misc/warn-sysheader.cpp
new file mode 100644
index 00000000000..dbc38258c4d
--- /dev/null
+++ b/clang/test/Misc/warn-sysheader.cpp
@@ -0,0 +1,33 @@
+// Test that -Wsystem-headers works with default and custom mappings like -Werror.
+// Keep run lines at the bottom for line number stability.
+
+#ifdef IS_SYSHEADER
+#pragma clang system_header
+
+int f() { return (int)0; } // Use the old-style-cast warning as an arbitrary "ordinary" diagnostic for the purpose of testing.
+
+#warning "custom message"
+
+#if defined(A) || defined(B)
+// expected-warning@9 {{"custom message"}}
+#elif defined(C)
+// expected-warning@7 {{use of old-style cast}}
+// expected-warning@9 {{"custom message"}}
+#elif defined(D)
+// expected-error@7 {{use of old-style cast}}
+// expected-error@9 {{"custom message"}}
+#elif defined(E)
+// expected-error@7 {{use of old-style cast}}
+// expected-warning@9 {{"custom message"}}
+#endif
+
+#else
+#define IS_SYSHEADER
+#include __FILE__
+#endif
+
+// RUN: %clang_cc1 -verify -fsyntax-only -DA %s
+// RUN: %clang_cc1 -verify -fsyntax-only -DB -Wold-style-cast %s
+// RUN: %clang_cc1 -verify -fsyntax-only -DC -Wold-style-cast -Wsystem-headers %s
+// RUN: %clang_cc1 -verify -fsyntax-only -DD -Wold-style-cast -Wsystem-headers -Werror %s
+// RUN: %clang_cc1 -verify -fsyntax-only -DE -Wold-style-cast -Wsystem-headers -Werror=old-style-cast %s