// A QUALIFIED generic head `a.Box(s64)` where namespace `a` exists but authors
// NO member named `Box` must DIAGNOSE the missing member — never silently fall
// back to the bare last-wins `struct_template_map` and instantiate an unrelated
// module's same-name `Box`.
//
// `a.sx` authors only `Other` (no `Box`); `b.sx` authors a generic `Box($T)`.
// The qualified reference `a.Box(s64)` must report that `a` has no member `Box`,
// NOT resolve to `b.Box`.
//
// Regression (Phase E4 finding #2): before the qualified head path diagnosed the
// missing member, `qualifiedStructTemplate` returned null and the code fell
// through to the bare global template, silently instantiating `b.Box`
// (`size=16 x=1 y=2`, exit 0).

#import "modules/std.sx";
a :: #import "0775-modules-qualified-generic-missing-member/a.sx";
b :: #import "0775-modules-qualified-generic-missing-member/b.sx";

main :: () -> s32 {
    x : a.Box(s64) = .{ x = 1, y = 2 };
    print("{}\n", x.x);
    0
}