Format all tests.

tests/lib/mirrors/parameter_metadata_test.dart

Index: tests/lib/mirrors/parameter_metadata_test.dart
diff --git a/tests/lib/mirrors/parameter_metadata_test.dart b/tests/lib/mirrors/parameter_metadata_test.dart
index 68a0f34e519100e99ad8a40467608093b7cc93a7..f0c6871201b92ca80cab0139a9c2da8e966bbbd8 100644
--- a/tests/lib/mirrors/parameter_metadata_test.dart
+++ b/tests/lib/mirrors/parameter_metadata_test.dart
@@ -24,7 +24,7 @@ class B {
   factory B.bar(@m3 @m2 int z, x) {}
 
   baz(@m1 final int x, @m2 int y, @m3 final int z) {}
-  qux(int x, [@m3 @m2 @m1 int y= 3 + 1]) {}
+  qux(int x, [@m3 @m2 @m1 int y = 3 + 1]) {}
   quux(int x, {String str: "foo"}) {}
   corge({@m1 int x: 3 * 17, @m2 String str: "bar"}) {}