Format all tests.

tests/language_strong/closure_variable_shadow_test.dart

Index: tests/language_strong/closure_variable_shadow_test.dart
diff --git a/tests/language_strong/closure_variable_shadow_test.dart b/tests/language_strong/closure_variable_shadow_test.dart
index 8f774b403491f7a3ff2c1cb67492ca646d269f0d..4b1edb477b4e4fb26f72850ce43bbcb30362fbfe 100644
--- a/tests/language_strong/closure_variable_shadow_test.dart
+++ b/tests/language_strong/closure_variable_shadow_test.dart
@@ -4,17 +4,18 @@
 
 import "package:expect/expect.dart";
 
-// The intermediate variable 'y' must either be preserved 
+// The intermediate variable 'y' must either be preserved
 // or parameters must be renamed.
 
 foo(x) {
-    var y = x;
-    bar(x) {
-        return y - x;
-    }
-    return bar;
+  var y = x;
+  bar(x) {
+    return y - x;
+  }
+
+  return bar;
 }
 
 main() {
-    Expect.equals(-10, foo(10)(20));
+  Expect.equals(-10, foo(10)(20));
 }