Revert "Run dartfmt on all files under runtime."

runtime/observatory/tests/service/pause_on_unhandled_async_exceptions_test.dart

Index: runtime/observatory/tests/service/pause_on_unhandled_async_exceptions_test.dart
diff --git a/runtime/observatory/tests/service/pause_on_unhandled_async_exceptions_test.dart b/runtime/observatory/tests/service/pause_on_unhandled_async_exceptions_test.dart
index 626a180df4ab2e407e1117f6023afdf72d8e15e5..2f4354e4dccbf950d836fe9010635a185915d8c4 100644
--- a/runtime/observatory/tests/service/pause_on_unhandled_async_exceptions_test.dart
+++ b/runtime/observatory/tests/service/pause_on_unhandled_async_exceptions_test.dart
@@ -11,7 +11,9 @@ import 'service_test_common.dart';
 
 const LINE_A = 37;
 
-class Foo {}
+class Foo {
+
+}
 
 doThrow() {
   throw "TheException"; // Line 13.
@@ -27,17 +29,21 @@ testeeMain() async {
     // caught.
     try {
       await asyncThrower();
-    } catch (e) {}
+    } catch (e) {
+    }
 
     // uncaught.
     try {
-      await asyncThrower(); // LINE_A.
-    } on double catch (e) {}
-  } on Foo catch (e) {}
+      await asyncThrower();  // LINE_A.
+    } on double catch (e) {
+    }
+  } on Foo catch (e) {
+  }
 }
 
 var tests = [
   hasStoppedWithUnhandledException,
+
   (Isolate isolate) async {
     print("We stoppped!");
     var stack = await isolate.getStack();
@@ -48,10 +54,12 @@ var tests = [
     expect(asyncStack[2].kind, equals(M.FrameKind.asyncSuspensionMarker));
     expect(asyncStack[3].toString(), contains('testeeMain'));
     // We've stopped at LINE_A.
-    expect(
-        await asyncStack[3].location.toUserString(), contains('.dart:$LINE_A'));
+    expect(await asyncStack[3].location.toUserString(),
+           contains('.dart:$LINE_A'));
   }
 ];
 
-main(args) => runIsolateTests(args, tests,
-    pause_on_unhandled_exceptions: true, testeeConcurrent: testeeMain);
+main(args) => runIsolateTests(args,
+                              tests,
+                              pause_on_unhandled_exceptions: true,
+                              testeeConcurrent: testeeMain);