💾 trunk/060670aadfb5995aaf62aa31f2d7c23db24bd791: Preserve FX graph cache guard provenance (#184193)

Summary
Preserve source locations for Inductor guards that are saved in the FX graph cache, so a cache-hit recompile reason still points at the original guard producer instead of the cache replay site.
Fixes #141595
Generated by my agent
Root Cause
Without the FX graph cache, ShapeEnv records each ShapeGuard with the source location captured when...