Added global fail() function to Jasmine typings

jasmine/jasmine-tests.ts

@@ -714,6 +714,22 @@ describe("Asynchronous specs", function () {
     });
 });
 
+describe("Fail", function () {
+
+  it("should fail test when called without arguments", function () {
+    fail();
+  });
+
+  it("should fail test when called with a fail message", function () {
+    fail("The test failed");
+  });
+
+  it("should fail test when called an error", function () {
+    fail(new Error("The test failed with this error"));
+  });
+
+});
+
 (() => {
     // from boot.js
     var env = jasmine.getEnv();

jasmine/jasmine.d.ts

@@ -33,6 +33,8 @@ declare function afterAll(action: (done: () => void) => void): void;
 declare function expect(spy: Function): jasmine.Matchers;
 declare function expect(actual: any): jasmine.Matchers;
 
+declare function fail(e?: any): void;
+
 declare function spyOn(object: any, method: string): jasmine.Spy;
 
 declare function runs(asyncMethod: Function): void;