1555436f70
Now we should get an sdk_path, but tools like xcodebuild, xcode-select and xcrun will still error out. But at least more of Homebrew will work. Also putting the Xcode 3 path finder last. We get bug reports because newer Xcodes are installed in parallel to older Xcodes. We want to find and use the newer Xcode's first. Xcode.prefix is pretty smart about that. Refs Homebrew/homebrew#14558.