Display and error for hierarchical references in a parameter r-value expr.
Display and error for hierarchical references in a parameter r-value expr.

Display and error message when the user uses a hierarchical reference
in a parameter r-value expression.

CastMi/iverilog,CastMi/iverilog,themperek/iverilog,themperek/iverilog,CastMi/iverilog,themperek/iverilog