Disable formatting and add new-lines to make tests faster.

test/dart_codegen/expect/core/symbol.dart

Index: test/dart_codegen/expect/core/symbol.dart
diff --git a/test/dart_codegen/expect/core/symbol.dart b/test/dart_codegen/expect/core/symbol.dart
index 39b3337e245cb6d7dcb2285ee574af49df3e8fa3..653095778016de6d16adb9b835943921b5e1ffe4 100644
--- a/test/dart_codegen/expect/core/symbol.dart
+++ b/test/dart_codegen/expect/core/symbol.dart
@@ -1,7 +1,5 @@
 part of dart.core;
-
-abstract class Symbol {
-  const factory Symbol(String name) = internal.Symbol;
-  int get hashCode;
-  bool operator ==(Object other);
+ abstract class Symbol {const factory Symbol(String name) = internal.Symbol;
+ int get hashCode;
+ bool operator ==(Object other);
 }