Don't remove the init expression from the initializer list if it had a semantic error.

We already flag the error with InitListChecker's hadError and we mess up the AST unnecessarily.
Fixes rdar://8605381.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117760 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed