Investigate and possibly fix asserts failing in baseline

[kfukuda2]

ChakraCore/test/typedarray/Uint8ClampedArray_es6.baseline
contains output of asserts failing. The corresponding js file should be changed to assert based on expected behavior.

[rhuanjl]

There's a previous issue #2020 to cleanup all of the typed array tests as they're rather messy - I was thinking of doing this but hadn't got around to it yet.