message: Fix FunctionParameterExpression type bug.
diff: @@ -239,7 +239,11 @@ export class FunctionParameterExpression extends Expression {
  public asToken?: Token
  ) {
  super();
  - this.type = util.tokenToBscType(typeToken) ?? new DynamicType();
  + if (typeToken) {
  + this.type = util.tokenToBscType(typeToken);
  + } else {
  + this.type = new DynamicType();
  + }
  }
  public type: BscType;
  