fix: linker converts providers/usesInheritance/usesOnChanges to features for directives

[Brooooooklyn]

The directive linker was passing through a raw features property that
doesn't exist on partial declarations. Replace with build_features()
(already used by the component linker) so providers, usesInheritance,
and usesOnChanges are correctly converted to their feature equivalents.

• Close Linker drops providers when linking ɵɵngDeclareDirective → ɵɵdefineDirective #66

Co-Authored-By: Claude Opus 4.6 noreply@anthropic.com

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Note

Medium Risk
Changes directive codegen in the Angular partial declaration linker, which can affect runtime behavior if feature emission is incorrect, but the change is small and covered by new focused tests.

Overview
Fixes directive linking to compute the features array via build_features() (matching component linking) so directive partial declarations with providers, usesInheritance, and/or usesOnChanges emit the correct feature calls (e.g. ɵɵProvidersFeature, ɵɵInheritDefinitionFeature, ɵɵNgOnChangesFeature).

Adds regression tests covering each directive feature flag and the combined case to ensure provider references are preserved and the expected feature helpers appear in linked output.

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[Brooooooklyn]

• fix: linker converts providers/usesInheritance/usesOnChanges to features for directives #76 👈 (View in Graphite)
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