[libc++][test] Partially revert msvc_stdlib_force_include.h _Pragma change
authorCasey Carter <cacarter@microsoft.com>
Thu, 2 Apr 2020 19:59:57 +0000 (12:59 -0700)
committerCasey Carter <cacarter@microsoft.com>
Thu, 2 Apr 2020 19:59:57 +0000 (12:59 -0700)
commitea3152bb3d359f61fd3c091a640d6f0c0b2a80cc
treefb4edda75ddd9b9f451c24ef1335ae6249c0a36e
parent4fdb63bbf0ce1b482a02fd9a1cdc30cc8ace1fec
[libc++][test] Partially revert msvc_stdlib_force_include.h _Pragma change

... keep the warning suppression, but revert the `__pragma` to `_Pragma` change because `_Pragma` interacts badly with `/Zc:preprocessor`.
libcxx/test/support/msvc_stdlib_force_include.h