[libcxx][test] move libc++-specific tests into the libcxx tree

...and rename from `version.pass.cpp` to `version.compile.pass.cpp` to follow the new convention.

GitOrigin-RevId: edecee382608f6fcf1430c4bbf543359fae8330a
diff --git a/test/std/thread/thread.barrier/version.pass.cpp b/test/libcxx/thread/thread.barrier/version.compile.pass.cpp
similarity index 100%
rename from test/std/thread/thread.barrier/version.pass.cpp
rename to test/libcxx/thread/thread.barrier/version.compile.pass.cpp
diff --git a/test/std/thread/thread.latch/version.pass.cpp b/test/libcxx/thread/thread.latch/version.compile.pass.cpp
similarity index 100%
rename from test/std/thread/thread.latch/version.pass.cpp
rename to test/libcxx/thread/thread.latch/version.compile.pass.cpp
diff --git a/test/std/thread/thread.semaphore/version.pass.cpp b/test/libcxx/thread/thread.semaphore/version.compile.pass.cpp
similarity index 100%
rename from test/std/thread/thread.semaphore/version.pass.cpp
rename to test/libcxx/thread/thread.semaphore/version.compile.pass.cpp
diff --git a/test/std/utilities/format/version.compile.pass.cpp b/test/libcxx/utilities/format/version.compile.pass.cpp
similarity index 100%
rename from test/std/utilities/format/version.compile.pass.cpp
rename to test/libcxx/utilities/format/version.compile.pass.cpp