Suppress code_motion_exception_test on platforms with unhelpful messages

tests/compiler/dart2js_extra/dart2js_extra.status

Index: tests/compiler/dart2js_extra/dart2js_extra.status
diff --git a/tests/compiler/dart2js_extra/dart2js_extra.status b/tests/compiler/dart2js_extra/dart2js_extra.status
index e5ff113e96f3abdf43da78286ea5a2a665fb9a7b..ae5c042071bc886b5bd319f1f945845c7cac9183 100644
--- a/tests/compiler/dart2js_extra/dart2js_extra.status
+++ b/tests/compiler/dart2js_extra/dart2js_extra.status
@@ -40,6 +40,9 @@ to_string_test: Fail # Issue 7179.
 runtime_type_test: Fail, OK # Tests extected output of Type.toString().
 code_motion_exception_test: Skip  # Requires unminified operator names.
 
+[ $compiler == dart2js && ($runtime == drt || $runtime == ff || $runtime == safari || $runtime == jsshell) ]
+code_motion_exception_test: Skip  # Required V8 specific format of JavaScript errors.
+
 [ $compiler == dart2js && ($runtime == drt || $runtime == ff || $runtime == safari || $runtime == chrome || $runtime == chromeOnAndroid) ]
 isolate2_test/01: Fail # Issue 14458.