Add capability to simulate on native. (make nativesim=true)
Add "info" simulator feature, which allows for printing a string and
continuing (similar conditional stop).
Adding '__ info("your message");' within code causes the simulator to
print that message when its associated breakpoint is hit. One useful way
to use it is to add it to the define of the EMIT_STUB_MARKER macro:
EMIT_STUB_MARKER(stub_marker) __ info(__FUNCTION__) __ marker_asm(stub_marker).