Moved toHaveClass matcher into core so that it can be used in Karma

- Fixes #1503

spec/html/matchers/toHaveClassSpec.js

@@ -1,48 +0,0 @@
-describe('toHaveClass', function() {
-  it('fails for a DOM element that lacks the expected class', function() {
-    var matcher = jasmineUnderTest.matchers.toHaveClass(),
-      result = matcher.compare(document.createElement('div'), 'foo');
-
-    expect(result.pass).toBe(false);
-  });
-
-  it('passes for a DOM element that has the expected class', function() {
-    var matcher = jasmineUnderTest.matchers.toHaveClass(),
-      el = document.createElement('div');
-
-    el.className = 'foo bar baz';
-
-    expect(matcher.compare(el, 'foo').pass).toBe(true);
-    expect(matcher.compare(el, 'bar').pass).toBe(true);
-    expect(matcher.compare(el, 'bar').pass).toBe(true);
-  });
-
-  it('fails for a DOM element that only has other classes', function() {
-    var matcher = jasmineUnderTest.matchers.toHaveClass(),
-      el = document.createElement('div');
-
-    el.className = 'foo bar';
-
-    expect(matcher.compare(el, 'fo').pass).toBe(false);
-  });
-
-  it('throws an exception when actual is not a DOM element', function() {
-    var matcher = jasmineUnderTest.matchers.toHaveClass();
-
-    expect(function() {
-      matcher.compare('x', 'foo');
-    }).toThrowError("'x' is not a DOM element");
-
-    expect(function() {
-      matcher.compare(undefined, 'foo');
-    }).toThrowError('undefined is not a DOM element');
-
-    expect(function() {
-      matcher.compare(document.createTextNode(''), 'foo')
-    }).toThrowError('HTMLNode is not a DOM element');
-
-    expect(function() {
-      matcher.compare({classList: ''}, 'foo');
-    }).toThrowError("Object({ classList: '' }) is not a DOM element");
-  });
-});