The cross-module return-type resolution derived only {sha} and the last segment from {sha}.Class.method, then queried the vpi cache and the dependency text.ll with no class name. Both key methods by class, so a class-level function without a return annotation (Scheduler._yield) missed both lookups and hit the fail-fast 'Cannot obtain the cross-module function return type precisely' path. Derive the middle segment and pass it as the class when it names a registered class; module functions ({sha}.submod.func) keep the bare-name lookup.
TermiNexus
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