fix documentation for {Ui,I}nt{8,16,32}Array

```@param A ....``` is not the right syntax, the first word after ```@param``` needs to match the parameter name.

I'm Adam Freidin on codeplex, CLA is complete.

(P.S., this was discovered using automatic means so I'm fairly confident that this is the only ```@param``` issue in the source, for ts.SyntaxKind.Method nodes at least).