Format all tests.

tests/language/type_propagation_phi_test.dart

Index: tests/language/type_propagation_phi_test.dart
diff --git a/tests/language/type_propagation_phi_test.dart b/tests/language/type_propagation_phi_test.dart
index 8154ffc4b11ba93041500e71cc574a486d744226..4c8e3e222ca47d6e08851f8b10449e8d70ccaee6 100644
--- a/tests/language/type_propagation_phi_test.dart
+++ b/tests/language/type_propagation_phi_test.dart
@@ -13,8 +13,8 @@ foo(b) {
   var x = bar();
   var x2 = x;
   if (b) x2 = bar2();
-  var x3 = 9 + x;  // Guarantees that x is a number. Dart2js propagated the
-                   // type information back to the phi (for x2).
+  var x3 = 9 + x; // Guarantees that x is a number. Dart2js propagated the
+  // type information back to the phi (for x2).
   return x2 + x3;
 }