ROM shim for Xcode builds
Rename CPU Test
Remove XCTest stuff and roll our own

    * Eh, not sure what bennies going with XCTest offers, use our existing stuff
    * Also appears that XCTest does some real whacky dloading jazz that doesn't play well with our hand-rolled assembly
HACKs around bizarre bytecode generation on Darwin

    * CPU tests pass now, w00t!