JS: Format if statements with no else on a single line

lib/runtime/dart/isolate.js

 dart_library.library('dart/isolate', null, /* Imports */[
   "dart/_runtime",
   'dart/core',
   'dart/async'
 ], /* Lazy imports */[
   'dart/_isolate_helper'
 ], function(exports, dart, core, async, _isolate_helper) {
   'use strict';
   let dartx = dart.dartx;
   class Capability extends core.Object {
@@ skipping 34 matching lines @@
         return _isolate_helper.IsolateNatives.spawnFunction(entryPoint, message, paused).then(dart.fn(msg => new Isolate(dart.as(dart.dindex(msg, 1), SendPort), {pauseCapability: dart.as(dart.dindex(msg, 2), Capability), terminateCapability: dart.as(dart.dindex(msg, 3), Capability)}), Isolate, [dart.dynamic]));
       } catch (e) {
         let st = dart.stackTrace(e);
         return async.Future$(Isolate).error(e, st);
       }
 
     }
     static spawnUri(uri, args, message, opts) {
       let paused = opts && 'paused' in opts ? opts.paused : false;
       let packageRoot = opts && 'packageRoot' in opts ? opts.packageRoot : null;
-      if (packageRoot != null)
-        dart.throw(new core.UnimplementedError("packageRoot"));
+      if (packageRoot != null) dart.throw(new core.UnimplementedError("packageRoot"));
       try {
         if (dart.is(args, core.List)) {
           for (let i = 0; dart.notNull(i) < dart.notNull(args[dartx.length]); i = dart.notNull(i) + 1) {
             if (!(typeof args[dartx.get](i) == 'string')) {
               dart.throw(new core.ArgumentError(`Args must be a list of Strings ${args}`));
             }
           }
         } else if (args != null) {
           dart.throw(new core.ArgumentError(`Args must be a list of Strings ${args}`));
         }
         return _isolate_helper.IsolateNatives.spawnUri(uri, args, message, paused).then(dart.fn(msg => new Isolate(dart.as(dart.dindex(msg, 1), SendPort), {pauseCapability: dart.as(dart.dindex(msg, 2), Capability), terminateCapability: dart.as(dart.dindex(msg, 3), Capability)}), Isolate, [dart.dynamic]));
       } catch (e) {
         let st = dart.stackTrace(e);
         return async.Future$(Isolate).error(e, st);
       }
 
     }
     pause(resumeCapability) {
-      if (resumeCapability === void 0)
-        resumeCapability = null;
-      if (resumeCapability == null)
-        resumeCapability = Capability.new();
+      if (resumeCapability === void 0) resumeCapability = null;
+      if (resumeCapability == null) resumeCapability = Capability.new();
       this[_pause](resumeCapability);
       return resumeCapability;
     }
     [_pause](resumeCapability) {
       let message = core.List.new(3);
       message[dartx.set](0, "pause");
       message[dartx.set](1, this.pauseCapability);
       message[dartx.set](2, resumeCapability);
       this.controlPort.send(message);
     }
@@ skipping 16 matching lines @@
       this.controlPort.send(message);
     }
     setErrorsFatal(errorsAreFatal) {
       let message = core.List.new(3);
       message[dartx.set](0, "set-errors-fatal");
       message[dartx.set](1, this.terminateCapability);
       message[dartx.set](2, errorsAreFatal);
       this.controlPort.send(message);
     }
     kill(priority) {
-      if (priority === void 0)
-        priority = Isolate.BEFORE_NEXT_EVENT;
+      if (priority === void 0) priority = Isolate.BEFORE_NEXT_EVENT;
       this.controlPort.send(["kill", this.terminateCapability, priority]);
     }
     ping(responsePort, pingType) {
-      if (pingType === void 0)
-        pingType = Isolate.IMMEDIATE;
+      if (pingType === void 0) pingType = Isolate.IMMEDIATE;
       let message = core.List.new(3);
       message[dartx.set](0, "ping");
       message[dartx.set](1, responsePort);
       message[dartx.set](2, pingType);
       this.controlPort.send(message);
     }
     addErrorListener(port) {
       let message = core.List.new(2);
       message[dartx.set](0, "getErrors");
       message[dartx.set](1, port);
@@ skipping 66 matching lines @@
   }
   ReceivePort[dart.implements] = () => [async.Stream];
   dart.setSignature(ReceivePort, {
     constructors: () => ({
       new: [ReceivePort, []],
       fromRawReceivePort: [ReceivePort, [RawReceivePort]]
     })
   });
   class RawReceivePort extends core.Object {
     static new(handler) {
-      if (handler === void 0)
-        handler = null;
+      if (handler === void 0) handler = null;
       return new _isolate_helper.RawReceivePortImpl(handler);
     }
   }
   dart.setSignature(RawReceivePort, {
     constructors: () => ({new: [RawReceivePort, [], [dart.functionType(dart.void, [dart.dynamic])]]})
   });
   class _IsolateUnhandledException extends core.Object {
     _IsolateUnhandledException(message, source, stackTrace) {
       this.message = message;
       this.source = source;
@@ skipping 36 matching lines @@
   });
   // Exports:
   exports.Capability = Capability;
   exports.IsolateSpawnException = IsolateSpawnException;
   exports.Isolate = Isolate;
   exports.SendPort = SendPort;
   exports.ReceivePort = ReceivePort;
   exports.RawReceivePort = RawReceivePort;
   exports.RemoteError = RemoteError;
 });