Add modified runtimes back to runtimes_to_build

Author: amykhuang

.ci/compute_projects.py

@@ -229,6 +229,8 @@ def _compute_runtimes_to_build(
     for modified_project in modified_projects:
         if modified_project in DEPENDENT_RUNTIMES_TO_BUILD:
             runtimes_to_build.update(DEPENDENT_RUNTIMES_TO_BUILD[modified_project])
+        if modified_project in RUNTIMES:
+            runtimes_to_build.add(modified_project)
     return _exclude_projects(runtimes_to_build, platform)
 
 

.ci/compute_projects_test.py

@@ -187,14 +187,14 @@ def test_top_level_file(self):
         self.assertEqual(env_variables["runtimes_check_targets"], "")
         self.assertEqual(env_variables["runtimes_check_targets_needs_reconfig"], "")
 
-    def test_exclude_runtiems_in_projects(self):
+    def test_exclude_runtimes_in_projects(self):
         env_variables = compute_projects.get_env_variables(
             ["libcxx/CMakeLists.txt"], "Linux"
         )
         self.assertEqual(env_variables["projects_to_build"], "")
         self.assertEqual(env_variables["project_check_targets"], "")
-        self.assertEqual(env_variables["runtimes_to_build"], "")
-        self.assertEqual(env_variables["runtimes_check_targets"], "")
+        self.assertEqual(env_variables["runtimes_to_build"], "libcxx")
+        self.assertEqual(env_variables["runtimes_check_targets"], "check-cxx")
         self.assertEqual(env_variables["runtimes_check_targets_needs_reconfig"], "")
 
     def test_exclude_docs(self):