Comment out recent regression r44096.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44098 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/RewriteTest.cpp b/Driver/RewriteTest.cpp
index 5538a90..78cd90e 100644
--- a/Driver/RewriteTest.cpp
+++ b/Driver/RewriteTest.cpp
@@ -386,7 +386,7 @@
   // Lastly, comment out the @end.
   SourceLocation LocEnd = PDecl->getAtEndLoc();
   Rewrite.ReplaceText(LocEnd, 0, "// ", 3);
-  
+#if 0  
   // Must comment out @optional/@required
   const char *startBuf = SM->getCharacterData(LocStart);
   const char *endBuf = SM->getCharacterData(LocEnd);
@@ -408,11 +408,13 @@
       
     }
   }
-
+#endif
 }
 
 void RewriteTest::RewriteForwardProtocolDecl(ObjcForwardProtocolDecl *PDecl) {
   SourceLocation LocStart = PDecl->getLocation();
+  if (LocStart.isInvalid())
+    assert(false && "Invalid SourceLocation");
   // FIXME: handle forward protocol that are declared across multiple lines.
   Rewrite.ReplaceText(LocStart, 0, "// ", 3);
 }