Deprecate non-Date arguments to jasmine.clock().mockDate()

src/core/MockDate.js

@@ -1,4 +1,4 @@
-getJasmineRequireObj().MockDate = function() {
+getJasmineRequireObj().MockDate = function(j$) {
   function MockDate(global) {
     var self = this;
     var currentTime = 0;
@@ -16,6 +16,14 @@ getJasmineRequireObj().MockDate = function() {
       if (mockDate instanceof GlobalDate) {
         currentTime = mockDate.getTime();
       } else {
+        if (!j$.util.isUndefined(mockDate)) {
+          j$.getEnv().deprecated(
+            'The argument to jasmine.clock().mockDate(), if specified, ' +
+              'should be a Date instance. Passing anything other than a Date ' +
+              'will be treated as an error in a future release.'
+          );
+        }
+
         currentTime = new GlobalDate().getTime();
       }
 

src/core/requireCore.js

@@ -38,7 +38,7 @@ var getJasmineRequireObj = (function(jasmineGlobal) {
     j$.Any = jRequire.Any(j$);
     j$.Anything = jRequire.Anything(j$);
     j$.CallTracker = jRequire.CallTracker(j$);
-    j$.MockDate = jRequire.MockDate();
+    j$.MockDate = jRequire.MockDate(j$);
     j$.getClearStack = jRequire.clearStack(j$);
     j$.Clock = jRequire.Clock();
     j$.DelayedFunctionScheduler = jRequire.DelayedFunctionScheduler(j$);