Rust: Remove TC from ImplTraitTypeRepr.isInReturnPos
#20233
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Pull Request Overview
This PR refactors the ImplTraitTypeRepr class in Rust QL to improve query performance by removing transitive closure (TC) operations from the isInReturnPos predicate. The changes introduce a helper predicate with a pragma[nomagic] annotation to optimize the computation.
- Introduces a private helper predicate
getFunctionTypeReprwith performance optimization - Refactors
getFunction()to use the new helper predicate - Updates
isInReturnPos()to avoid transitive closure operations
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#20119 follow-up.