Make getKeys, getValues getters (keys, values).

tests/corelib/core_runtime_types_test.dart

Index: tests/corelib/core_runtime_types_test.dart
diff --git a/tests/corelib/core_runtime_types_test.dart b/tests/corelib/core_runtime_types_test.dart
index 660ee980a0516afb9ed409cbdababfb0a593de2a..d1733bd1d04cf1a2cee41eda757b8060bda9faee 100644
--- a/tests/corelib/core_runtime_types_test.dart
+++ b/tests/corelib/core_runtime_types_test.dart
@@ -223,20 +223,20 @@ class CoreRuntimeTypesTest {
     assertEquals(d.containsValue(3), false);
     assertEquals(d.containsKey('a'), true);
     assertEquals(d.containsKey('c'), false);
-    assertEquals(d.getKeys().length, 2);
-    assertEquals(d.getValues().length, 2);
+    assertEquals(d.keys.length, 2);
+    assertEquals(d.values.length, 2);
 
     assertEquals(d.remove('c'), null);
     assertEquals(d.remove('b'), 2);
-    assertListEquals(d.getKeys(), ['a']);
-    assertListEquals(d.getValues(), [1]);
+    assertListEquals(d.keys, ['a']);
+    assertListEquals(d.values, [1]);
 
     d['c'] = 3;
     d['f'] = 4;
-    assertEquals(d.getKeys().length, 3);
-    assertEquals(d.getValues().length, 3);
-    assertListContains(d.getKeys(), ['a', 'c', 'f']);
-    assertListContains(d.getValues(), [1, 3, 4]);
+    assertEquals(d.keys.length, 3);
+    assertEquals(d.values.length, 3);
+    assertListContains(d.keys, ['a', 'c', 'f']);
+    assertListContains(d.values, [1, 3, 4]);
 
     var count = 0;
     d.forEach((key, value) {
@@ -250,8 +250,8 @@ class CoreRuntimeTypesTest {
     assertEquals(d.containsValue(3), false);
     assertEquals(d.containsKey('a'), true);
     assertEquals(d.containsKey('c'), false);
-    assertEquals(d.getKeys().length, 2);
-    assertEquals(d.getValues().length, 2);
+    assertEquals(d.keys.length, 2);
+    assertEquals(d.values.length, 2);
 
     d['g'] = null;
     assertEquals(d.containsKey('g'), true);