Preparation for the issue 13701 - Hijack object.dup(aa) call to emulate it in CTFE
fix Issue 13701 - Associative array values ignore immutability
Merge pull request #4154 from 9rnsr/ctfe_aa_dup

Preparation for the issue 13701 - Hijack object.dup(aa) call to emulate it in CTFE
Merge pull request #4148 from 9rnsr/fix13701

[REG2.061] Issue 13701 - Associative array values ignore immutability