Format all tests.

tests/language_strong/field_method4_negative_test.dart

Index: tests/language_strong/field_method4_negative_test.dart
diff --git a/tests/language_strong/field_method4_negative_test.dart b/tests/language_strong/field_method4_negative_test.dart
index 44a3ab1c565a58d64949520d8984aca21d5a106a..94755db6edcec9c4af823b912b6e829c2e62d59b 100644
--- a/tests/language_strong/field_method4_negative_test.dart
+++ b/tests/language_strong/field_method4_negative_test.dart
@@ -6,10 +6,10 @@
 class A {
   var foo;
   A() {
-    foo = () { };
+    foo = () {};
   }
   void bar(var a) {
-    a.foo();  // Tries to invoke the non-existing method 'foo'.
+    a.foo(); // Tries to invoke the non-existing method 'foo'.
     /*
     'a.foo()' is a "Regular instance-method invocation". The guide says:
     "If no method is found, the result of the invocation expression is
@@ -28,7 +28,6 @@ class FieldMethod4NegativeTest {
   }
 }
 
-
 main() {
   FieldMethod4NegativeTest.testMain();
 }