Simplifying toThrow:

- It still supports no expected, which means that something was thrown
- Expected value is now tested via equality in order to pass

Adding toThrowError:
- toThrowError() passes if an Error type was thrown
- toThrowError(String) & toThrowError(RegExp) compare Expected to the Error message
- toThrowError(Error constructor) compares Expected to the constructor of what was thrown
- toThrowError(Error constructor, String) & toThrowError(Error constructor, RegExp) compares both the Error and the message

Also, equality now handles Errors, enforcing the message as part of the equality.

src/core/matchers/requireMatchers.js

@@ -15,7 +15,8 @@ getJasmineRequireObj().requireMatchers = function(jRequire) {
       "toHaveBeenCalled",
       "toHaveBeenCalledWith",
       "toMatch",
-      "toThrow"
+      "toThrow",
+      "toThrowError"
     ],
     matchers = {};