Mark MS inline ASM 'nodplicate' it it has labels (PR23715)

Duplicating it can lead to labels being defined twice.

Differential revision: http://reviews.llvm.org/D15399

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@255201 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed