agra 2131557669 fix(lower): bare-call resolver skips non-plain authors before ambiguity gate [0102c F3] ...

resolveBareCallee's flat-collect branch counted ALL same-name authors —
including #foreign / generic / builtin / #compiler — before the
isPlainFreeFn filter, so two flat-imported modules each #foreign-ing the
same libc symbol under one sx name returned `.ambiguous` and errored,
instead of falling to `.none` and the existing first-wins foreign path
(master behavior). Filter authors to plain free functions DURING
collection, before the count/ambiguity determination: a non-plain
collision now yields 0 reroutable authors -> `.none`; genuine plain-fn
collisions still yield >= 2 -> `.ambiguous` (0724 unchanged). The
now-redundant single-author isPlainFreeFn check is dropped.

Regression: examples/0729-modules-flat-same-name-foreign — two flat FILE
imports each #foreign the same libc "abs" under name `absval`; a bare
call resolves first-wins and runs (exit 0). Fails-before on this branch
(ambiguity error), passes-after.

2026-06-06 15:31:14 +03:00

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