From 9f5933a73b2dde9164f4fed001d987491f277c9a Mon Sep 17 00:00:00 2001
From: Fariborz Jahanian <fjahanian@apple.com>
Date: Tue, 16 Oct 2012 16:21:20 +0000
Subject: [PATCH] fixes an objc crash involving objc bool literal on hopelessly
 poorly written code after spewing several errors. // rdar://12491143

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166025 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Sema/SemaExpr.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 3d66baa925..02eac1190b 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -11917,7 +11917,7 @@ Sema::ActOnObjCBoolLiteral(SourceLocation OpLoc, tok::TokenKind Kind) {
   if (!Context.getBOOLDecl()) {
     LookupResult Result(*this, &Context.Idents.get("BOOL"), SourceLocation(),
                         Sema::LookupOrdinaryName);
-    if (LookupName(Result, getCurScope())) {
+    if (LookupName(Result, getCurScope()) && Result.isSingleResult()) {
       NamedDecl *ND = Result.getFoundDecl();
       if (TypedefDecl *TD = dyn_cast<TypedefDecl>(ND)) 
         Context.setBOOLDecl(TD);
-- 
2.40.0