Modified unittest to use new argument syntax.

tests/html/instance_of_test.dart

Index: tests/html/instance_of_test.dart
===================================================================
--- tests/html/instance_of_test.dart	(revision 14156)
+++ tests/html/instance_of_test.dart	(working copy)
@@ -11,46 +11,60 @@
   canvas.attributes['height'] = 100;
   document.body.nodes.add(canvas);
 
+  var isCanvasRenderingContext = predicate((x) => x is CanvasRenderingContext,
+      'is a CanvasRenderingContext');
+  var isCanvasRenderingContext2D = 
+      predicate((x) => x is CanvasRenderingContext2D,
+      'is a CanvasRenderingContext2D');
+  var isElement = predicate((x) => x is Element, 'is an Element');
+  var isCanvasElement = 
+      predicate((x) => x is CanvasElement, 'is a CanvasElement');
+  var isImageData = predicate((x) => x is ImageData, 'is an ImageData');
+  //var isCanvasPixelArray =
+  //  predicate((x) => x is CanvasPixelArray, 'is a CanvasPixelArray');
+  var isUint8ClampedArray = 
+      predicate((x) => x is Uint8ClampedArray, 'is a Uint8ClampedArray');
+
   useHtmlConfiguration();
   test('Instanceof', () {
-    Expect.isFalse(canvas is CanvasRenderingContext);
-    Expect.isFalse(canvas is CanvasRenderingContext2D);
-    Expect.isTrue(canvas is Element);
-    Expect.isTrue(canvas is CanvasElement);
-    Expect.isFalse(canvas is ImageData);
-    // Expect.isFalse(canvas is CanvasPixelArray);
+    expect(canvas, isNot(isCanvasRenderingContext));
+    expect(canvas, isNot(isCanvasRenderingContext2D));
+    expect(canvas, isElement);
+    expect(canvas, isCanvasElement);
+    expect(canvas, isNot(isImageData));
+    // expect(canvas, isNot(isCanvasPixelArray));
 
     CanvasRenderingContext2D context = canvas.getContext('2d');
-    Expect.isTrue(context is CanvasRenderingContext);
-    Expect.isTrue(context is CanvasRenderingContext2D);
-    Expect.isFalse(context is Element);
-    Expect.isFalse(context is CanvasElement);
-    Expect.isFalse(context is ImageData);
-    // Expect.isFalse(context is CanvasPixelArray);
+    expect(context, isCanvasRenderingContext);
+    expect(context, isCanvasRenderingContext2D);
+    expect(context, isNot(isElement));
+    expect(context, isNot(isCanvasElement));
+    expect(context, isNot(isImageData));
+    // expect(context, isNot(isCanvasPixelArray));
 
     // FIXME(b/5286633): Interface injection type check workaround.
     var image = context.createImageData(canvas.width as Dynamic,
                                         canvas.height as Dynamic);
-    Expect.isFalse(image is CanvasRenderingContext);
-    Expect.isFalse(image is CanvasRenderingContext2D);
-    Expect.isFalse(image is Element);
-    Expect.isFalse(image is CanvasElement);
-    Expect.isTrue(image is ImageData);
-    // Expect.isFalse(image is CanvasPixelArray);
+    expect(image, isNot(isCanvasRenderingContext));
+    expect(image, isNot(isCanvasRenderingContext2D));
+    expect(image, isNot(isElement));
+    expect(image, isNot(isCanvasElement));
+    expect(image, isImageData);
+    // expect(image, isNot(isCanvasPixelArray));
 
     // Include CanvasPixelArray since constructor and prototype are not
     // available until one is created.
     var bytes = image.data;
-    Expect.isFalse(bytes is CanvasRenderingContext);
-    Expect.isFalse(bytes is CanvasRenderingContext2D);
-    Expect.isFalse(bytes is Element);
-    Expect.isFalse(bytes is CanvasElement);
-    Expect.isFalse(bytes is ImageData);
-    Expect.isTrue(bytes is Uint8ClampedArray);
+    expect(bytes, isNot(isCanvasRenderingContext));
+    expect(bytes, isNot(isCanvasRenderingContext2D));
+    expect(bytes, isNot(isElement));
+    expect(bytes, isNot(isCanvasElement));
+    expect(bytes, isNot(isImageData));
+    expect(bytes, isUint8ClampedArray);
 
     // FIXME: Ensure this is an SpanElement when we next update
     // WebKit IDL.
     var span = new Element.tag('span');
-    Expect.isTrue(span is Element);
+    expect(span, isElement);
   });
 }