fix marking of nested blocks with the "hasBlockDeclRefExprs" to
mark exactly the blocks which have references that are "live through".
This fixes a rejects valid: 
rdar://6808730 - [sema] [blocks] block rejected at global scope


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69738 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed