Use other means to run only the test we want

Author: ldionne

libcxx/utils/ci/run-buildbot

@@ -700,11 +700,8 @@ clang-cl-dll)
     # anyway), thus just disable the experimental library. Remove this
     # setting when cmake and the test driver does the right thing automatically.
     generate-cmake-libcxx-win -DLIBCXX_TEST_PARAMS="enable_experimental=False"
-    step "Building dependencies"
-    ${NINJA} -vC "${BUILD_DIR}" cxx-test-depends
-
-    step "Running tests"
-    ./libcxx/utils/libcxx-lit "${BUILD_DIR}" --show-all libcxx/test/std/re/re.traits/getloc.pass.cpp
+    step "Running the libc++ tests"
+    ${NINJA} -vC "${BUILD_DIR}" check-cxx
 ;;
 clang-cl-static)
     clean

libcxx/utils/libcxx/test/format.py

@@ -287,6 +287,9 @@ def execute(self, test, litConfig):
         supportsVerify = "verify-support" in test.config.available_features
         filename = test.path_in_suite[-1]
 
+        if filename != 'getloc.pass.cpp':
+            return lit.Test.Result(lit.Test.UNSUPPORTED, "not the test we're looking for")
+
         if re.search("[.]sh[.][^.]+$", filename):
             steps = []  # The steps are already in the script
             return self._executeShTest(test, litConfig, steps)