Perform an optimized __method__ or __callee__ invocation without accessing a caller's frame. This logic checks if the target method is our built-in version and uses fast logic in that case. All other calls fall back on normal indy call logic. Only the built-in versions can actually access the caller's frame, so we can omit the frame altogether if we only use the specialized site. Note that if the target method is initially not built-in, or becomes a not built-in version later, we permanently fall back on the invocation logic. No further checking is done and the site is optimized as a normal call from there.