Update aosp/master clang for rebase to r233350

Change-Id: I12d4823f10bc9e445b8b86e7721b71f98d1df442
diff --git a/lib/Rewrite/Rewriter.cpp b/lib/Rewrite/Rewriter.cpp
index 60cdcf7..be09a36 100644
--- a/lib/Rewrite/Rewriter.cpp
+++ b/lib/Rewrite/Rewriter.cpp
@@ -54,7 +54,7 @@
   if (Size == 0) return;
 
   unsigned RealOffset = getMappedOffset(OrigOffset, true);
-  assert(RealOffset+Size < Buffer.size() && "Invalid location");
+  assert(RealOffset+Size <= Buffer.size() && "Invalid location");
 
   // Remove the dead characters.
   Buffer.erase(RealOffset, Size);