Verilog: add net identifiers to the scope

The parser now adds net identifiers to the current scope.

Author: kroening

src/verilog/parser.y

@@ -2172,11 +2172,15 @@ range:  part_select;
 
 net_decl_assignment:
           net_identifier unpacked_dimension_brace
-                { $$ = $1;
+                { // add to the scope
+                  PARSER.scopes.add_identifier(stack_expr($1).get(ID_base_name), verilog_scopet::NET);
+                  $$ = $1;
                   stack_expr($$).id(ID_declarator);
                   addswap($$, ID_type, $2); }
         | net_identifier unpacked_dimension_brace '=' expression
-                { $$ = $1;
+                { // add to the scope
+                  PARSER.scopes.add_identifier(stack_expr($1).get(ID_base_name), verilog_scopet::NET);
+                  $$ = $1;
                   stack_expr($$).id(ID_declarator);
                   addswap($$, ID_type, $2);
                   addswap($$, ID_value, $4); }

src/verilog/verilog_scope.cpp

@@ -93,6 +93,7 @@ unsigned verilog_scopet::identifier_token() const
   case verilog_scopet::PARAMETER:       return TOK_NON_TYPE_IDENTIFIER;
   case verilog_scopet::PROPERTY:        return TOK_NON_TYPE_IDENTIFIER;
   case verilog_scopet::SEQUENCE:        return TOK_NON_TYPE_IDENTIFIER;
+  case verilog_scopet::NET:             return TOK_NON_TYPE_IDENTIFIER;
   case verilog_scopet::VAR:             return TOK_NON_TYPE_IDENTIFIER;
   case verilog_scopet::OTHER:           return TOK_NON_TYPE_IDENTIFIER;
     // clang-format on

src/verilog/verilog_scope.h

@@ -32,6 +32,7 @@ struct verilog_scopet
     PARAMETER,
     PROPERTY,
     SEQUENCE,
+    NET,
     VAR,
     OTHER
   };