Keep full test_ method names in reflective tests.

pkg/analyzer/test/reflective_tests.dart

Index: pkg/analyzer/test/reflective_tests.dart
diff --git a/pkg/analyzer/test/reflective_tests.dart b/pkg/analyzer/test/reflective_tests.dart
index f2f05af50d0d7a121f674f6bf1c4e8c0c89b1c94..ec90c28acef2125322660103a48745b25547fb6b 100644
--- a/pkg/analyzer/test/reflective_tests.dart
+++ b/pkg/analyzer/test/reflective_tests.dart
@@ -38,16 +38,14 @@ void runReflectiveTests(Type type) {
       String memberName = MirrorSystem.getName(symbol);
       // test_
       if (memberName.startsWith('test_')) {
-        String testName = memberName.substring('test_'.length);
-        test(testName, () {
+        test(memberName, () {
           return _runTest(classMirror, symbol);
         });
         return;
       }
       // solo_test_
       if (memberName.startsWith('solo_test_')) {
-        String testName = memberName.substring('solo_test_'.length);
-        solo_test(testName, () {
+        solo_test(memberName, () {
           return _runTest(classMirror, symbol);
         });
       }