Add triples to these tests since they're now using TLS, which isn't available on all targets.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179514 91177308-0d34-0410-b5e6-96231b3b80d8
Add triple to another test.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179515 91177308-0d34-0410-b5e6-96231b3b80d8
Properly check for a constant initializer for a thread-local variable.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179516 91177308-0d34-0410-b5e6-96231b3b80d8
Local thread_local variables are implicitly 'static'. (This doesn't apply to _Thread_local nor __thread.)


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179517 91177308-0d34-0410-b5e6-96231b3b80d8