Move UTF functions into namespace llvm.

Summary:
This lets people link against LLVM and their own version of the UTF
library.

I determined this only affects llvm, clang, lld, and lldb by running

$ git grep -wl 'UTF[0-9]\+\|\bConvertUTF\bisLegalUTF\|getNumBytesFor' | cut -f 1 -d '/' | sort | uniq
  clang
  lld
  lldb
  llvm

Tested with

  ninja lldb
  ninja check-clang check-llvm check-lld

(ninja check-lldb doesn't complete for me with or without this patch.)

Reviewers: rnk

Subscribers: klimek, beanz, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D24996

llvm-svn: 282822

1 files changed, 4 insertions, 3 deletions

diff --git a/clang/lib/Analysis/FormatString.cpp b/clang/lib/Analysis/FormatString.cpp
index 0872e788c60..2a518cac394 100644
--- a/clang/lib/Analysis/FormatString.cpp
+++ b/clang/lib/Analysis/FormatString.cpp
@@ -266,14 +266,15 @@ bool clang::analyze_format_string::ParseUTF8InvalidSpecifier(
   if (SpecifierBegin + 1 >= FmtStrEnd)
     return false;
 
-  const UTF8 *SB = reinterpret_cast<const UTF8 *>(SpecifierBegin + 1);
-  const UTF8 *SE = reinterpret_cast<const UTF8 *>(FmtStrEnd);
+  const llvm::UTF8 *SB =
+      reinterpret_cast<const llvm::UTF8 *>(SpecifierBegin + 1);
+  const llvm::UTF8 *SE = reinterpret_cast<const llvm::UTF8 *>(FmtStrEnd);
   const char FirstByte = *SB;
 
   // If the invalid specifier is a multibyte UTF-8 string, return the
   // total length accordingly so that the conversion specifier can be
   // properly updated to reflect a complete UTF-8 specifier.
-  unsigned NumBytes = getNumBytesForUTF8(FirstByte);
+  unsigned NumBytes = llvm::getNumBytesForUTF8(FirstByte);
   if (NumBytes == 1)
     return false;
   if (SB + NumBytes > SE)