[cfe-commits] Changes PPCallback to export the search path in InclusionDirective (issue4430065)

[klimek at google.com]

Reviewers: chandlerc1,

Description:
To be able to replay compilations we need to accurately remodel how
includes get resolved, especially when they are found relatively to
another include file. We also try to get it working for framework
includes, but that part of the code is untested, as I don't have a code
base that uses it.

Please review this at http://codereview.appspot.com/4430065/

Affected files:
   M include/clang/Lex/DirectoryLookup.h
   M include/clang/Lex/HeaderMap.h
   M include/clang/Lex/HeaderSearch.h
   M include/clang/Lex/PPCallbacks.h
   M include/clang/Lex/PreprocessingRecord.h
   M include/clang/Lex/Preprocessor.h
   M lib/Lex/HeaderMap.cpp
   M lib/Lex/HeaderSearch.cpp
   M lib/Lex/PPDirectives.cpp
   M lib/Lex/PPMacroExpansion.cpp
   M lib/Lex/Pragma.cpp
   M lib/Lex/PreprocessingRecord.cpp