Fixed a memory leak in clang/Tooling.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157687 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Tooling/Tooling.cpp b/lib/Tooling/Tooling.cpp
index a4a63e2..058d897 100644
--- a/lib/Tooling/Tooling.cpp
+++ b/lib/Tooling/Tooling.cpp
@@ -251,8 +251,7 @@
     // FIXME: figure out what '0' stands for.
     const FileEntry *FromFile = Files->getVirtualFile(
         It->getKey(), Input->getBufferSize(), 0);
-    // FIXME: figure out memory management ('true').
-    Sources.overrideFileContents(FromFile, Input, true);
+    Sources.overrideFileContents(FromFile, Input);
   }
 }