E4 non-transitive type rule had two generic-head author-selection holes: #1 A BARE generic struct head / alias with a single bare-VISIBLE author still instantiated a NON-visible 2-flat-hop same-name template, because the `.unregistered` gate arm fell through to the global last-wins `struct_template_map` winner. Add `bareVisibleStructTemplate`: after the visibility gate passes, select the source-keyed template authored by the single bare-visible author (own-wins, else the one 1-hop flat author) and instantiate THAT instead of the global map's last-wins entry. Null (→ the global map, byte-identical) when the visible author IS the canonical one (the common single-author case) or the picture isn't a clean single author. Applied at every bare generic-struct head/alias site (annotation `.call` / `.parameterized_type_expr`, alias-registration `.call` / `.parameterized_type_expr`, array-literal head). #2 A QUALIFIED head `a.Box(..)` whose namespace `a` authors no member `Box` silently fell back to the bare global template, instantiating an unrelated module's `Box`. Add `qualifiedMemberMissing`: a qualified head whose known namespace lacks the member now emits "namespace 'a' has no member 'Box'" and poisons with `.unresolved`; a qualified head NEVER reaches the bare global map. Regressions: 0774 (bare head + bare alias, 2-hop same-name → size=8 alias=8, fail-before 16 16); 0775 (qualified missing member → diagnostic + exit 1, fail-before size=16 exit 0).
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2 lines
23 B
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size=8 alias=8 x=1 a=2
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