Format all tests.

tests/language/instance_compound_assignment_operator_test.dart

Index: tests/language/instance_compound_assignment_operator_test.dart
diff --git a/tests/language/instance_compound_assignment_operator_test.dart b/tests/language/instance_compound_assignment_operator_test.dart
index bbbb834507ee28b9753bfe234a01d5c8db68f2ac..b992acc85376510457cf8542f0148b9bcbb02394 100644
--- a/tests/language/instance_compound_assignment_operator_test.dart
+++ b/tests/language/instance_compound_assignment_operator_test.dart
@@ -18,19 +18,22 @@ class A {
     gGetCount++;
     return _g;
   }
+
   set g(value) {
     gSetCount++;
     _g = value;
   }
 }
 
-
 class B {
-  B() : _a = new A(), count = 0 {}
+  B()
+      : _a = new A(),
+        count = 0 {}
   get a {
     count++;
     return _a;
   }
+
   var _a;
   var count;
 }