swift

f73c5c0c - [ConstraintSystem] Use '# of overloads' as a tie-breaker in ambiguities

[ConstraintSystem] Use '# of overloads' as a tie-breaker in ambiguities The deepest expression is the one that introduced the ambiguity into the chain, so depth and index should be deciding factors and number of overloads - a tie-breaker, while choosing what to diagnose. Resolves: rdar://94360230 (cherry picked from commit 8f69b9f2e0ba0647840b834187e62e7021f7b607)