Format all tests.

tests/language/unicode_bom_middle_test.dart

Index: tests/language/unicode_bom_middle_test.dart
diff --git a/tests/language/unicode_bom_middle_test.dart b/tests/language/unicode_bom_middle_test.dart
index 788807f778c3180deff9e38b47ca77cf98444d46..e620b2b0ec98e4115dec1c84fbfcfba3354c41df 100644
--- a/tests/language/unicode_bom_middle_test.dart
+++ b/tests/language/unicode_bom_middle_test.dart
@@ -12,6 +12,6 @@ foo(x) {
 }
 
 main() {
-  Expect.equals(3, "xx".length);  // BOM character between the xs.
-  Expect.equals(3, foo("xx").length);  // BOM character between the xs.
+  Expect.equals(3, "xx".length); // BOM character between the xs.
+  Expect.equals(3, foo("xx").length); // BOM character between the xs.
 }