awk fix

                }

            }

            frame[pname].scalar=eval(args[i]);

            continue;

        }

        // extra params with no matching arg stay uninitialized (usable as locals, incl. arrays on first use)

        // Extra params with no matching arg are the standard awk idiom for

        // function-local scratch variables (e.g. "function f(realarg,

        // i,j) {...}"). Still has to land in `frame` as its own (default-

        // constructed, UNINIT) Cell here -- not skipped entirely -- purely

        // so the name EXISTS in this frame at all: every variable lookup

        // below checks locals_.back() first and only falls through to

        // globals_ when the name isn't a key there. Skipping the insert for

        // "no matching arg" left exactly that lookup falling through, so

        // this "local" silently aliased whatever global happened to share

        // its name -- e.g. a helper using "i"/"j" as loop counters (an

        // extremely common choice) would clobber a CALLER's own same-named

        // global loop variable instead of getting its own fresh one, purely

        // because the helper happened to be called with fewer real

        // arguments than its full declared parameter list.

        frame[pname];

    }

    locals_.push_back(std::move(frame));

    Value ret;