tree 35e572920eb7fcf5305f28d056b231309740dfef
parent 8c96d145c1f9b5431643403caad9264a5b9e1402
author Brad King <brad.king@kitware.com> 1678379832 -0500
committer Brad King <brad.king@kitware.com> 1678390561 -0500

Treat '.ccm', '.cxxm', and '.c++m' files as C++ sources

These extensions are used by convention for C++ module interface units
with Clang.

For now, do not add any tests using these extensions.
Very few compilers recognize them as C++ sources.
Tests can be added later as part of C++ modules support.