Place a sentinel object in the loadedFacadeModules cache before the Jiti
sync load begins. Re-entrant calls (caused by circular facade references
from constant exports evaluated at module-evaluation time) now receive the
sentinel instead of recursing infinitely. Once the real module finishes
loading, Object.assign() back-fills the sentinel so any references
captured during the circular load phase see the final exports.
The Jiti load is wrapped in try/catch: on failure the sentinel is removed
from the cache so that subsequent retry attempts re-execute the load
instead of silently returning an empty object. The function returns the
sentinel (not the raw loaded module) to guarantee a single object identity
for all callers, including those that captured a reference during the
circular load phase.
Also tightens the generic constraint from <T> to <T extends object> so
Object.assign() is type-safe, and propagates the constraint to the
test-utils callers in bundled-plugin-public-surface.ts.
Fixes#57394
openperf
Peter Steinberger