`std::core::has_membe`r fails for `this` and `parent`.

Try running the following simple pattern:

import std.core;
import std.io;
using Test;

struct Parent {
    Test test;
    u8 byte;
    std::print("{}",std::core::has_member(this,"test"));
};

Parent p @0;

struct Test {
    u8 var;
    auto local = parent;
    std::print("{}",local);
    std::print("{}",std::core::has_member(this,"var"));
   std::print("{}",std::core::has_member(parent,"byte"));
};

std::print("{}",std::core::has_member(p,"test"));

This prints false for all but the last print statement.
I also don't understand why local appears to be empty no matter what I try.

Start by running the pattern using the std.core and std.io entry points shown in the issue, then inspect the implementation of std::core::has_member and resolution of this, parent, and local. Done means member checks behave consistently for these contexts and the observed empty parent value is explained or corrected.