fixed ReturnCheck handling of enforceReturnType

Author: AlexHaxe

checkstyle/checks/ReturnCheck.hx

@@ -34,7 +34,9 @@ class ReturnCheck extends Check {
 				case FFun(fun):
 					if (fun.ret == null) {
 						_warnReturnTypeMissing(f.name, f.pos);
+						return;
 					}
+					return;
 				default:
 			}
 		}

run.n

@@ -35,7 +35,7 @@ class ReturnCheckTest extends CheckTestCase {
 		assertEquals(msg, '');
 
 		msg = checkMessage(ReturnTests.TEST2, check);
-		assertEquals(msg, 'Return type not specified when returning a value for function: test1');
+		assertEquals(msg, 'Return type not specified for function: test1');
 
 		msg = checkMessage(ReturnTests.TEST3, check);
 		assertEquals(msg, 'Return type not specified for function: test2');