Format all tests.

tests/corelib/string_runes_test.dart

Index: tests/corelib/string_runes_test.dart
diff --git a/tests/corelib/string_runes_test.dart b/tests/corelib/string_runes_test.dart
index f0dbd54e7673522838e916987c728887a4bdbffa..fd0f4f3b1e0b00ef33937448e1251b829daad496 100644
--- a/tests/corelib/string_runes_test.dart
+++ b/tests/corelib/string_runes_test.dart
@@ -57,7 +57,7 @@ main() {
 
     // .map
     Expect.listEquals(expectedRunes.map((x) => x.toRadixString(16)).toList(),
-                      runes.map((x) => x.toRadixString(16)).toList());
+        runes.map((x) => x.toRadixString(16)).toList());
   }
 
   // First character must be single-code-unit for test.
@@ -75,6 +75,10 @@ main() {
   Expect.equals(0x10000, it.current);
 
   // Setting rawIndex inside surrogate pair.
-  Expect.throws(() { it.rawIndex = 1; }, (e) => e is Error);
-  Expect.throws(() { it.reset(1); }, (e) => e is Error);
+  Expect.throws(() {
+    it.rawIndex = 1;
+  }, (e) => e is Error);
+  Expect.throws(() {
+    it.reset(1);
+  }, (e) => e is Error);
 }