tree cc012c8bcd65f94cad4768f11fd8f22effe32d7a
parent ab6faf34259881cbaf0197430831ebac1fb98a34
author Chris Lattner <sabre@nondot.org> 1261027780 +0000
committer Chris Lattner <sabre@nondot.org> 1261027780 +0000

reimplement r90860, fixing a couple of problems:
1. Don't make a copy of LangOptions every time a lexer is created.
2. Don't make CharInfo global mutable state.
3. Fix the implementation to properly treat ^Z as EOF instead of as
   horizontal whitespace, which matches the semantic implemented by VC++.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91586 91177308-0d34-0410-b5e6-96231b3b80d8