tree a71956e82aa61337bbefcc15fc7bb8df83a73bf4
parent 1b9ad143c163a8e18f8dc34e8cdabfa668a53aea
author Chris Lattner <sabre@nondot.org> 1222459943 +0000
committer Chris Lattner <sabre@nondot.org> 1222459943 +0000

Fix the rest of rdar://6243860 hopefully.  This requires changing FileIDInfo
to whether the fileid is a 'extern c system header' in addition to whether it
is a system header, most of this is spreading plumbing around.  Once we have that,
PPLexerChange bases its "file enter/exit" notifications to PPCallbacks to
base the system header state on FileIDInfo instead of HeaderSearch.  Finally,
in Preprocessor::HandleIncludeDirective, mirror logic in GCC: the system headerness
of a file being entered can be set due to the #includer or the #includee.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56688 91177308-0d34-0410-b5e6-96231b3b80d8