fix issue 10612 - ICE on using enum as hash key with mutual module
imports
fix rol/ror test
fix sh-tests for win64
use $DMD instead of dmd
Merge pull request #2341 from WalterBright/testrolror

fix rol/ror test
Merge pull request #2336 from hpohl/10612

[REG2.064a] fix issue 10612 - ICE on using enum as hash key with mutual module imports
Merge pull request #2343 from rainers/win64_enable_tests

fix sh-tests for win64