fix(hir): keep loop-property hoist off the recursive lowering stack #9194

Release blocker discovered by PR #9189 CI.

Failure

The cargo-test job aborts in commands::compile::collect_modules::tests::statically_reachable_trusted_js_package_is_aot_compiled_without_route_entry with a stack overflow on Rust default 2 MiB test threads. The failure reproduces alone on Linux with the CI profile and disappears with PERRY_LOOP_PROPERTY_HOIST=0 or a larger RUST_MIN_STACK.

Root cause

Bisect identifies #9149 (561a555). hoist_loop_invariant_property_array returns Option<(Stmt, Expr, Vec)> directly to recursive lower_body_stmt. In unoptimized test builds the large return place inflates each recursive lowering frame, exhausting the thread stack in an unrelated module-collection fixture.

Required fix and acceptance

• Keep the successful hoist result pointer-sized at the recursive call site, without disabling the optimization.
• The isolated module-collection test must pass with the default stack and the CI profile.
• The loop_property_array_hoist integration suite must still pass with the optimization enabled and disabled.
• PR cargo-test must pass without setting RUST_MIN_STACK globally.