driver: Implement -Wr handling for macro redefinitions
driver: Implement -Wr handling for macro redefinitions

Signed-off-by: Andrew Andrianov <02e0a999c50b1f88df7a8f5a04e1b76b35ea6a88@ncrmnt.org>

themperek/iverilog,themperek/iverilog,themperek/iverilog