Update language tests to new getter syntax.

dart/tests/language/getters_setters2_test.dart

Index: dart/tests/language/getters_setters2_test.dart
diff --git a/dart/tests/language/getters_setters2_test.dart b/dart/tests/language/getters_setters2_test.dart
index f854a27d62d8291a24e719cc507b9f845aa53e81..38075971c1c2b0753bf9b44a1c6eee1cf25aed4f 100644
--- a/dart/tests/language/getters_setters2_test.dart
+++ b/dart/tests/language/getters_setters2_test.dart
@@ -16,7 +16,7 @@ class C {}
 
 class T1 {
   A getterField; 
-  A get field() { return getterField; }
+  A get field { return getterField; }
   // OK, B is assignable to A
   void set field(B arg) { getterField = arg; }
 }
@@ -24,7 +24,7 @@ class T1 {
 class T2 {
   A getterField; 
   C setterField; 
-  A get field() { return getterField; }
+  A get field { return getterField; }
 
   // Type C is not assignable to A
   void set field(C arg) { setterField = arg; } /// 01: static type warning
@@ -32,7 +32,7 @@ class T2 {
 
 class T3 {
   B getterField; 
-  B get field() { return getterField; }
+  B get field { return getterField; }
   // OK, A is assignable to B
   void set field(A arg) { getterField = arg; }
 }