Allow methods to be named ‘factory’

tests/language/method_name_test.dart

Index: tests/language/method_name_test.dart
diff --git a/tests/language/method_name_test.dart b/tests/language/method_name_test.dart
index b0199cf63d17ca140f5e113786c6e7ea990559d8..ea9c7d2ccf63e3f978aaa82b5db7ff7e264aac28 100644
--- a/tests/language/method_name_test.dart
+++ b/tests/language/method_name_test.dart
@@ -12,6 +12,7 @@ class A {
   int get() {return 1;}
   int set() {return 2;}
   int operator() {return 3;}
+  int factory() { return 4; }
 }
 
 // Without return types.
@@ -19,6 +20,7 @@ class B {
   get() {return 1;}
   set() {return 2;}
   operator() {return 3;}
+  factory() { return 4; }
 }
 
 main() {
@@ -27,11 +29,13 @@ main() {
     Expect.equals(1, a.get());
     Expect.equals(2, a.set());
     Expect.equals(3, a.operator());
+    Expect.equals(4, a.factory());
   }
   {
     B b = new B();
     Expect.equals(1, b.get());
     Expect.equals(2, b.set());
     Expect.equals(3, b.operator());
+    Expect.equals(4, b.factory());
   }
 }