Don’t keep prepending elements to the same array for every additional element found

[keichinger]

Given the following example

mount(".selector", AppComponent, [someParam]);

with two matching elements, the mojave would call the AppComponent's constructor with the following args:

• first iteration: firstMatchingElement, someParam
• second iteration: secondMatchingElement, firstMatchingElement, someParam
• third iteration: thirdMatchingElement, secondMatchingElement, firstMatchingElement, someParam

And it would just continue like that as we've kept prepending the elements with each additional match.

[apfelbox]

Can you please add a test?

[keichinger]

@apfelbox I've added a test that even compares the actual parameters against the expected ones.

Note that we should add more tests for mount and mountJsx.

[apfelbox]

Thanks 🎈