Fix rdar://6124613 a crash on invalid code.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54340 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/Parser.cpp b/lib/Parse/Parser.cpp
index 9eab4fd..05abfe1 100644
--- a/lib/Parse/Parser.cpp
+++ b/lib/Parse/Parser.cpp
@@ -31,14 +31,16 @@
 Action::~Action() {}
 
 
-void Parser::Diag(SourceLocation Loc, unsigned DiagID,
+bool Parser::Diag(SourceLocation Loc, unsigned DiagID,
                   const std::string &Msg) {
   Diags.Report(FullSourceLoc(Loc,PP.getSourceManager()), DiagID, &Msg, 1);
+  return true;
 }
 
-void Parser::Diag(SourceLocation Loc, unsigned DiagID, const SourceRange &R) {
+bool Parser::Diag(SourceLocation Loc, unsigned DiagID, const SourceRange &R) {
   Diags.Report(FullSourceLoc(Loc,PP.getSourceManager()), DiagID, 0, 0,
                &R, 1);
+  return true;
 }