Run dartfmt on all files under runtime.

runtime/observatory/tests/service/evaluate_in_frame_rpc_test.dart

Index: runtime/observatory/tests/service/evaluate_in_frame_rpc_test.dart
diff --git a/runtime/observatory/tests/service/evaluate_in_frame_rpc_test.dart b/runtime/observatory/tests/service/evaluate_in_frame_rpc_test.dart
index 2c73fe69c862e1da61abe04f78b2433e0c128c7f..cebc15b2a726a61a59f1fd02a1f110219f9779ee 100644
--- a/runtime/observatory/tests/service/evaluate_in_frame_rpc_test.dart
+++ b/runtime/observatory/tests/service/evaluate_in_frame_rpc_test.dart
@@ -23,25 +23,23 @@ void testFunction() {
 }
 
 var tests = [
-
-hasStoppedAtBreakpoint,
+  hasStoppedAtBreakpoint,
 
 // Evaluate against library, class, and instance.
-(Isolate isolate) async {
-  var result;
-  result = await isolate.evalFrame(0, 'value');
-  expect(result.valueAsString, equals('10000'));
-
-  result = await isolate.evalFrame(0, '_');
-  expect(result.valueAsString, equals('50'));
+  (Isolate isolate) async {
+    var result;
+    result = await isolate.evalFrame(0, 'value');
+    expect(result.valueAsString, equals('10000'));
 
-  result = await isolate.evalFrame(0, 'value + _');
-  expect(result.valueAsString, equals('10050'));
+    result = await isolate.evalFrame(0, '_');
+    expect(result.valueAsString, equals('50'));
 
-  result = await isolate.evalFrame(1, 'i');
-  expect(result.valueAsString, equals('100000000'));
-},
+    result = await isolate.evalFrame(0, 'value + _');
+    expect(result.valueAsString, equals('10050'));
 
+    result = await isolate.evalFrame(1, 'i');
+    expect(result.valueAsString, equals('100000000'));
+  },
 ];
 
 main(args) => runIsolateTests(args, tests, testeeConcurrent: testFunction);