[Issue 19410] New: Inconsistency between __traits(allMembers) and __traits(hasMember) for nested structs

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19410

          Issue ID: 19410
           Summary: Inconsistency between __traits(allMembers) and
                    __traits(hasMember) for nested structs
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: stanislav.blinov at gmail.com

void main() {
    struct S {
        ~this() {}
    }

    foreach (name; __traits(allMembers, S))
        static assert(__traits(hasMember, S, name));
}

The above will assert: __traits(allMembers) reports that S has a member "this"
(the context pointer), but __traits(hasMember) insists that it doesn't.

Perhaps "this" could be renamed to "__context", and made visible to
__traits(hasMember)?

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