Replace uses of LLVM_FUNCTION_NAME with __func__, this was macro was removed from llvm/Support in r284681

llvm-svn: 284690
diff --git a/clang/tools/libclang/CXSourceLocation.cpp b/clang/tools/libclang/CXSourceLocation.cpp
index e75f6a7..68ecf38 100644
--- a/clang/tools/libclang/CXSourceLocation.cpp
+++ b/clang/tools/libclang/CXSourceLocation.cpp
@@ -131,7 +131,7 @@
   if (line == 0 || column == 0)
     return clang_getNullLocation();
   
-  LogRef Log = Logger::make(LLVM_FUNCTION_NAME);
+  LogRef Log = Logger::make(__func__);
   ASTUnit *CXXUnit = cxtu::getASTUnit(TU);
   ASTUnit::ConcurrencyCheck Check(*CXXUnit);
   const FileEntry *File = static_cast<const FileEntry *>(file);