Run dartfmt on all files under runtime.

runtime/observatory/tests/service/set_library_debuggable_rpc_test.dart

Index: runtime/observatory/tests/service/set_library_debuggable_rpc_test.dart
diff --git a/runtime/observatory/tests/service/set_library_debuggable_rpc_test.dart b/runtime/observatory/tests/service/set_library_debuggable_rpc_test.dart
index 0571376dc24bb1a97bb66af75c25a7f8b2a3efd7..9877f636e299d29bdfb0d40c3dd6d4b1d4c7bd51 100644
--- a/runtime/observatory/tests/service/set_library_debuggable_rpc_test.dart
+++ b/runtime/observatory/tests/service/set_library_debuggable_rpc_test.dart
@@ -18,8 +18,7 @@ var tests = [
     var getObjectParams = {
       'objectId': isolate.rootLibrary.id,
     };
-    result = await isolate.invokeRpcNoUpgrade('getObject',
-                                              getObjectParams);
+    result = await isolate.invokeRpcNoUpgrade('getObject', getObjectParams);
     expect(result['debuggable'], equals(true));
 
     // Change debuggable to false.
@@ -27,15 +26,13 @@ var tests = [
       'libraryId': isolate.rootLibrary.id,
       'isDebuggable': false,
     };
-    result = await isolate.invokeRpcNoUpgrade('setLibraryDebuggable',
-                                              setDebugParams);
+    result = await isolate.invokeRpcNoUpgrade(
+        'setLibraryDebuggable', setDebugParams);
     expect(result['type'], equals('Success'));
 
     // Verify.
-    result = await isolate.invokeRpcNoUpgrade('getObject',
-                                              getObjectParams);
+    result = await isolate.invokeRpcNoUpgrade('getObject', getObjectParams);
     expect(result['debuggable'], equals(false));
-
   },
 
   // invalid library.
@@ -47,13 +44,14 @@ var tests = [
     bool caughtException;
     try {
       await isolate.invokeRpcNoUpgrade('setLibraryDebuggable', params);
-      expect(false, isTrue, reason:'Unreachable');
-    } on ServerRpcException catch(e) {
+      expect(false, isTrue, reason: 'Unreachable');
+    } on ServerRpcException catch (e) {
       caughtException = true;
       expect(e.code, equals(ServerRpcException.kInvalidParams));
-      expect(e.message,
-             "setLibraryDebuggable: "
-             "invalid 'libraryId' parameter: libraries/9999999");
+      expect(
+          e.message,
+          "setLibraryDebuggable: "
+          "invalid 'libraryId' parameter: libraries/9999999");
     }
     expect(caughtException, isTrue);
   },
@@ -61,8 +59,8 @@ var tests = [
   // illegal (dart:_*) library.
   (Isolate isolate) async {
     await isolate.load();
-    Library dartInternal = isolate.libraries.firstWhere(
-      (Library library) => library.uri == 'dart:_internal');
+    Library dartInternal = isolate.libraries
+        .firstWhere((Library library) => library.uri == 'dart:_internal');
     var params = {
       'libraryId': dartInternal.id,
       'isDebuggable': false,
@@ -70,13 +68,14 @@ var tests = [
     bool caughtException;
     try {
       await isolate.invokeRpcNoUpgrade('setLibraryDebuggable', params);
-      expect(false, isTrue, reason:'Unreachable');
-    } on ServerRpcException catch(e) {
+      expect(false, isTrue, reason: 'Unreachable');
+    } on ServerRpcException catch (e) {
       caughtException = true;
       expect(e.code, equals(ServerRpcException.kInvalidParams));
-      expect(e.message,
-             "setLibraryDebuggable: "
-             "illegal 'libraryId' parameter: ${dartInternal.id}");
+      expect(
+          e.message,
+          "setLibraryDebuggable: "
+          "illegal 'libraryId' parameter: ${dartInternal.id}");
     }
     expect(caughtException, isTrue);
   },