Rename SourceLocation::getFileLocWithOffset -> getLocWithOffset.

It already works (and is useful with) macro locs as well.

llvm-svn: 140057
diff --git a/clang/lib/CodeGen/CodeGenAction.cpp b/clang/lib/CodeGen/CodeGenAction.cpp
index fc1bd5e..55f3cbe 100644
--- a/clang/lib/CodeGen/CodeGenAction.cpp
+++ b/clang/lib/CodeGen/CodeGenAction.cpp
@@ -185,7 +185,7 @@
   // Translate the offset into the file.
   unsigned Offset = D.getLoc().getPointer()  - LBuf->getBufferStart();
   SourceLocation NewLoc =
-  CSM.getLocForStartOfFile(FID).getFileLocWithOffset(Offset);
+  CSM.getLocForStartOfFile(FID).getLocWithOffset(Offset);
   return FullSourceLoc(NewLoc, CSM);
 }