Revert changes from the nested lambdas commit till i figure out 
why the buildbots are failing.



git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@191876 91177308-0d34-0410-b5e6-96231b3b80d8
Extract ABI-specific parts of MangleContext into separate classes

Reviewed at http://llvm-reviews.chandlerc.com/D1807

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@191878 91177308-0d34-0410-b5e6-96231b3b80d8
Teach TreeTransform and family how to transform generic lambdas within templates and nested within themselves.
  
This does not yet include capturing (that is next).

Please see test file for examples.

This patch was LGTM'd by Doug:
http://llvm-reviews.chandlerc.com/D1784
http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20130930/090048.html

When I first committed this patch - a bunch of buildbots were unable to compile the code that VS2010 seemed to compile.  Seems like there was a dependency on Sema/Template.h which VS did not seem to need, but I have now added for the other compilers.  It still compiles on Visual Studio 2010 - lets hope the buildbots remain quiet (please!)

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@191879 91177308-0d34-0410-b5e6-96231b3b80d8