Fix "Uninitialized" warnings on g++-4.4.

In fact, they are false warnings but it seems g++-4.4 might be unable to know they must be false.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137568 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed