Regression Test 8282 - new Array!T

This one doesn't have an equivalent test, so adding this to make sure the bug never comes back. The actual issue was fixed in 2.063.

https://d.puremagic.com/issues/show_bug.cgi?id=8282
Fix Issue 7287 - BinaryHeap example

Two changes:

1. Fixed the array in the final assert. Not sure where the original array came from -- not Intro to Algorithms, I checked my copy!
2. Moved to documented unit test so we make sure it actually passes.

https://d.puremagic.com/issues/show_bug.cgi?id=7287
Minor style updates.
Merge pull request #1931 from Poita/bug7287

Fix Issue 7287 - BinaryHeap example
Merge pull request #1927 from Poita/bug8282

Regression Test 8282 - new Array!T