Add a LangOptions member to IdentifierResolver.
Make Sema pass the LangOptions to IdentifierResolver's constructor.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56015 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/IdentifierResolver.h b/lib/Sema/IdentifierResolver.h
index 4d2f0dd..82c4f06 100644
--- a/lib/Sema/IdentifierResolver.h
+++ b/lib/Sema/IdentifierResolver.h
@@ -221,10 +221,12 @@
   /// The decl must already be part of the decl chain.
   void RemoveDecl(NamedDecl *D);
 
-  IdentifierResolver();
+  explicit IdentifierResolver(const LangOptions &LangOpt);
   ~IdentifierResolver();
 
 private:
+  const LangOptions &LangOpt;
+
   class IdDeclInfoMap;
   IdDeclInfoMap *IdDeclInfos;