fixup! [clang] Change representation of CurLexerKind

Author: serge-sans-paille

clang/include/clang/Lex/Preprocessor.h

@@ -762,7 +762,7 @@ class Preprocessor {
   /// \#included, and macros currently being expanded from, not counting
   /// CurLexer/CurTokenLexer.
   struct IncludeStackInfo {
-    LexerCallback CurLexerCallback;
+    LexerCallback               CurLexerCallback;
     Module                     *TheSubmodule;
     std::unique_ptr<Lexer>      TheLexer;
     PreprocessorLexer          *ThePPLexer;