Shortcut invocation is not "equal" to full invocation method

[ogonkov]

Docs says:

The following calls are equivalent:
sdk.root..(data, options);
sdk..(data, options);

But actually invocation sdk.<service>.<action>.foobar() will work, that would be unexpected.

Expected behavior is that sdk.<service>.<action>.foobar() will not generate request to api with url <action url>/foobar. Ideally it should throw foobar is not a function.

This bug was found by evaluating sdk action in jest tests. There is a check for assymetricMatch property, and for sdk action this is true.