objc rewriter: Fixes a rewriting of implicit casting of an integral
argument to bool. // rdar://9899834



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136946 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Rewrite/RewriteObjC.cpp b/lib/Rewrite/RewriteObjC.cpp
index 63e2084..3ba7e90 100644
--- a/lib/Rewrite/RewriteObjC.cpp
+++ b/lib/Rewrite/RewriteObjC.cpp
@@ -3008,7 +3008,11 @@
         type = Context->getObjCIdType();
       // Make sure we convert "type (^)(...)" to "type (*)(...)".
       (void)convertBlockPointerToFunctionPointer(type);
-      userExpr = NoTypeInfoCStyleCastExpr(Context, type, CK_BitCast,
+      const Expr *SubExpr = ICE->IgnoreParenImpCasts();
+      bool integral = SubExpr->getType()->isIntegralType(*Context);
+      userExpr = NoTypeInfoCStyleCastExpr(Context, type, 
+                                          (integral && type->isBooleanType()) 
+                                            ? CK_IntegralToBoolean : CK_BitCast,
                                           userExpr);
     }
     // Make id<P...> cast into an 'id' cast.