fix Issue 12604 - No "mismatched array lengths" error with narrowing conversions
fix Issue 12593 - AA cannot have struct as key
fix Issue 12602 - [CTFE] Changes to an array slice wrapped in a struct do not propogate to the original
fix Issue 11535 - CTFE ICE on reassigning a static array initialized with block assignment
fix Issue 12110 - [CTFE] Error: CTFE internal error: Dotvar assignment
Merge pull request #3475 from 9rnsr/fix12604

Issue 12604 - No "mismatched array lengths" error with narrowing conversions
Merge pull request #3480 from 9rnsr/fix12110

Issue 12110 - [CTFE] Error: CTFE internal error: Dotvar assignment
Merge pull request #3479 from 9rnsr/fix11535

Issue 11535 - CTFE ICE on reassigning a static array initialized with block assignment
Merge pull request #3478 from 9rnsr/fix12602

Issue 12602 - [CTFE] Changes to an array slice wrapped in a struct do not propogate to the original
Do not mark mutable parameters as STCin for internal library calls
Merge pull request #3481 from ibuclaw/stcin

Do not mark mutable parameters as STCin for internal library calls
Merge pull request #3476 from 9rnsr/fix12593

[REG2.065] Issue 12593 - AA cannot have struct as key