Re-land "Format all multitests"

tests/language_strong/identical_const_test.dart

Index: tests/language_strong/identical_const_test.dart
diff --git a/tests/language_strong/identical_const_test.dart b/tests/language_strong/identical_const_test.dart
index 17324f33de618a3ee9219252029eb3b938cc3a52..c0d5fa5d5ad07ec5f8818a6d9e5b4ecc910dd2d4 100644
--- a/tests/language_strong/identical_const_test.dart
+++ b/tests/language_strong/identical_const_test.dart
@@ -16,12 +16,14 @@ const identical_gg = identical(g, g);
 const a = const {
   identical_ff: 0, //# 01: static type warning
   identical_gg: 0, //# 02: static type warning
-  true: 0 };
+  true: 0
+};
 
 const b = const {
   identical_fg: 0, //# 03: static type warning
   identical_gf: 0, //# 04: static type warning
-  false: 0 };
+  false: 0
+};
 
 use(x) => x;