cc1as: fix a potential leak and unremoved output file in error conditions

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@209935 91177308-0d34-0410-b5e6-96231b3b80d8
cc1as: invert return bool to indicate failure

This simplifies code flow and matches the convention used in surrounding code.

No functional change.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@209936 91177308-0d34-0410-b5e6-96231b3b80d8
Refactor: use the DeclarationNameInfo form of BuildMemberReferenceExpr
consistently, rather than sometimes performing lookup and calling the
LookupResult form. No functionality change intended.


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@209941 91177308-0d34-0410-b5e6-96231b3b80d8
[CodeGen] Don't cast and use SizeTy instead of Int32Ty when constructing {extract,insert} vector element instructions.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@209942 91177308-0d34-0410-b5e6-96231b3b80d8