servo: Merge #13361 - Report tidy error for space after ( (from Mylainos:issue-13350); r=Wafflespeanut

<!-- Please describe your changes on the following line: -->
Add report in tidy for code which have a space after the `(` like `some_function( argument)`

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #13350 (github issue number if applicable).

<!-- Either: -->
- [X] There are tests for these changes OR
- [ ] These changes do not require tests because _____

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Source-Repo: https://github.com/servo/servo
Source-Revision: 2ba804e6db52637fbe23fbecfd0e65b4db1a49e2

servo/python/tidy/servo_tidy_tests/rust_tidy.rs

@@ -49,4 +49,12 @@ impl test {
         }
     }
 
+    type Text_Fun3 = fn( i32) -> i32;
+
+    fn test_fun3<Text_Fun3>( y: Text_Fun3) {
+        test_fun( 1);
+    }
+
+    // Should not be triggered
+    macro_rules! test_macro ( ( $( $fun:ident = $flag:ident ; )* ) => ());
 }

servo/python/tidy/servo_tidy_tests/test_tidy.py

@@ -109,6 +109,9 @@ class CheckTidiness(unittest.TestCase):
         self.assertEqual('use &T instead of &Root<T>', errors.next()[2])
         self.assertEqual('operators should go at the end of the first line', errors.next()[2])
         self.assertEqual('else braces should be on the same line', errors.next()[2])
+        self.assertEqual('extra space after (', errors.next()[2])
+        self.assertEqual('extra space after (', errors.next()[2])
+        self.assertEqual('extra space after (', errors.next()[2])
         self.assertNoMoreErrors(errors)
 
     def test_spec_link(self):