Convert "#pragma unused(...)" into tokens for the parser.

This allows us to cache a "#pragma unused" that occurs inside an inline C++ member function.
Fixes rdar://8829590&8770988.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123666 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/Parse/Parser.cpp b/lib/Parse/Parser.cpp
index 473c6ad7b0..47c62377c2 100644
--- a/lib/Parse/Parser.cpp
+++ b/lib/Parse/Parser.cpp
@@ -404,6 +404,10 @@ void Parser::Initialize() {
 /// ParseTopLevelDecl - Parse one top-level declaration, return whatever the
 /// action tells us to.  This returns true if the EOF was encountered.
 bool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) {
+
+  while (Tok.is(tok::annot_pragma_unused))
+    HandlePragmaUnused();
+
   Result = DeclGroupPtrTy();
   if (Tok.is(tok::eof)) {
     Actions.ActOnEndOfTranslationUnit();