Switch sema to maintaining its own scope chain information for variable
shadowing, instead of threading it through the AST.  This patch contributed
by Argiris Kirtzidis!



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49520 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed