Do not prune cache entry if the runtime environment is different

[pgarg66]

Problem

LoadedPrograms::prune() should not remove an old entry if the runtime environment has changed. The old entry could still be getting used to replay old slots (slots corresponding to the old environment).

Summary of Changes

Check if the environment matches before pruning the old entry.

Fixes #

[codecov]

Codecov Report

Merging #34100 (048699b) into master (6c62ad7) will increase coverage by 0.0%.
Report is 1380 commits behind head on master.
The diff coverage is 90.9%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #34100      +/-   ##
==========================================
  Coverage    81.8%    81.9%              
==========================================
  Files         766      819      +53     
  Lines      209158   220170   +11012     
==========================================
+ Hits       171210   180430    +9220     
- Misses      37948    39740    +1792     

[mergify]

Backports to the beta branch are to be avoided unless absolutely necessary for fixing bugs, security issues, and perf regressions. Changes intended for backport should be structured such that a minimum effective diff can be committed separately from any refactoring, plumbing, cleanup, etc that are not strictly necessary to achieve the goal. Any of the latter should go only into master and ride the normal stabilization schedule. Exceptions include CI/metrics changes, CLI improvements and documentation updates on a case by case basis.