Update test to have second argument on Pattern.allMatches.

tests/language/core_type_check_test.dart

Index: tests/language/core_type_check_test.dart
diff --git a/tests/language/core_type_check_test.dart b/tests/language/core_type_check_test.dart
index 4af259064f192c47076e0a22575a84099c01b20e..495011e5712466d0c633bc35d0c2c02aa4e4100c 100644
--- a/tests/language/core_type_check_test.dart
+++ b/tests/language/core_type_check_test.dart
@@ -20,13 +20,13 @@ class B {
 
 class C implements Pattern {
   matchAsPrefix(String s, [int start = 0]) => null;
-  allMatches(String s) => null;
+  allMatches(String s, [int start = 0]) => null;
 }
 
 class D implements Pattern, Comparable {
   int compareTo(o) => 0;
   matchAsPrefix(String s, [int start = 0]) => null;
-  allMatches(String s) => null;
+  allMatches(String s, [int start = 0]) => null;
 }
 
 main() {