PR15966: don't get confused by a complex integer -> complex integer conversion
and misclassify it as a complex-real conversion.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181626 91177308-0d34-0410-b5e6-96231b3b80d8
Avoid patching storage class for block scope thread_local variables.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181627 91177308-0d34-0410-b5e6-96231b3b80d8