The root_path.cc test had some debugging macros left in accidentally, so
didn't FAIL correctly if an assertion failed.
The string-char8_t.cc tests didn't compile on Windows.
* testsuite/27_io/filesystem/path/decompose/root_path.cc: Remove
macros accidentally left in.
* te
* testsuite/27_io/filesystem/operations/proximate.cc: Fix test for
MinGW.
* testsuite/27_io/filesystem/path/append/source.cc: Likewise.
* testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
Tested x86_64-linux and mingw-w64, committed to trunk.
commit 2
