message: VhdlSubProgramParser::visitSubprogram_body update is_declaration_only
diff: @@ -35,6 +35,7 @@ std::unique_ptr<HdlFunctionDef> VhdlSubProgramParser::visitSubprogram_body(
  auto stm = VhdlStatementParser::visitSequential_statement(s);
  f->body.push_back(move(stm));
  }
  + f->is_declaration_only = false;
  return f;
  }
  