Fix a block sema bug where result type of initializer

is unqualified but its initialized is qualified.
This is for c only and fixes the imm. problem.
c++ is more involved and is wip.
// rdar://8979379


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125386 91177308-0d34-0410-b5e6-96231b3b80d8