Unify naming of LangOptions variable/get function across the Clang stack (Lex to AST).

The member variable is always "LangOpts" and the member function is always "getLangOpts".

Reviewed by Chris Lattner

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/ChainedIncludesSource.cpp b/lib/Frontend/ChainedIncludesSource.cpp
index c46743d..dbb06bd 100644
--- a/lib/Frontend/ChainedIncludesSource.cpp
+++ b/lib/Frontend/ChainedIncludesSource.cpp
@@ -116,7 +116,7 @@
     if (firstInclude) {
       Preprocessor &PP = Clang->getPreprocessor();
       PP.getBuiltinInfo().InitializeBuiltins(PP.getIdentifierTable(),
-                                             PP.getLangOptions());
+                                             PP.getLangOpts());
     } else {
       assert(!serialBufs.empty());
       SmallVector<llvm::MemoryBuffer *, 4> bufs;