Comma does not perform unary promotions, rdar://6095180


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54045 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 4f085d2..0e70c82 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -1894,7 +1894,7 @@
 
 inline QualType Sema::CheckCommaOperands( // C99 6.5.17
   Expr *&lex, Expr *&rex, SourceLocation loc) {
-  UsualUnaryConversions(rex);
+  // Comma does not perform unary or binary promotions.
   return rex->getType();
 }