Lambdas: semantic analysis of explicit captures.

This patch (and some of my other commits related to lambdas) is heavily based off of John Freeman's work-in-progress patches.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147706 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed