// E6a — per-decl nominal identity for UNION decls. A bare UNION reference is
// non-transitive AND ambiguity-checked at every site, exactly like the enum
// (0795) and struct (0767) forms. `main` flat-imports two modules that each author
// a same-name `Pair` union and authors none itself, so EACH of the following bare
// UNION forms is a genuine collision the source cannot disambiguate — and each must
// emit the LOUD "type 'Pair' is ambiguous" diagnostic and poison the result, NEVER
// silently pick a global `findByName` last-wins author:
//
//   - reflection / type-arg slot    `size_of(Pair)`
//   - typed annotation               `u : Pair = ---`
//   - type-as-value                  `t : Type = Pair`
//   - type-category match arm        `case Pair:`
//
// Fail-before (pre-E6a): the stateless `type_bridge.resolveInlineUnion`
// `findByName` short-circuit interned ONE global last-wins `Pair`, so every bare
// form silently resolved to it and the program exited 0.

#import "modules/std.sx";
#import "0797-modules-same-name-union-ambiguous/a.sx";
#import "0797-modules-same-name-union-ambiguous/b.sx";

describe :: ($T: Type) -> i32 {
    r := if T == {
        case Pair: 1;
        else: 0;
    }
    r
}

main :: () -> i32 {
    sz := size_of(Pair);
    u : Pair = ---;
    t : Type = Pair;
    k := describe(i64);
    0
}