Log Message:
(devel/MoarVM) Updated 2021.04 to 2021.05

(pkgsrc)
 - Add     DEPENDS+=       zstd>=1.0.0:../../archivers/zstd

(upstream changes)
https://www.moarvm.org/releases.html
2021.05

Core:

  * [a75a206a] Always log the type coming out of an nqp::decont
  * [5ba30ed8] MVM_fixed_size_destroy needs to free the safepoint overflow list
  * [961a1985,00eb44c7,c37ad91b] Free loaded libs during full cleanup
  * [bf5fa9bc] Make MVM_fixkey_hash_foreach static inline

IO:

  * [8f4cb5d8] Do not downcast bytes argument to write()/send() calls

Libraries:

  * [5ee04f0f] Ensure the version of libzstd is at least 1.0.0

Math:

  * [24420774] Convert MVM_num_{isnanorinf,posinf,neginf,nan} to inline
    functions
  * [179f5e50,31daadba,86e1289e,d6029122,31b13731] Implement MVM_num_isnanorinf
    using isinf and isnan if we find them

Platform:

  * \ 
[69f8b227,366c0e25,32c4c2d8,2c171255,b9860db6,cb01a109,4dcfda9a,da172e92,0e3fd6c \ 
3,6d449962]
    Cleanup the build system probes
  * \ 
[47e192b8,fa1eaacb,3073a3f9,44bd160e,3b8050f7,db6cca0e,9a70c3b6,54ab1516,29a421e \ 
c,e740b881,8611c7bf,d0a38131]
    Refactor the C compiler probe code and add a probe for log() for negative
    values

Spesh:

  * [c8c1b4f2] Fix spesh missing writes to containers
  * [14d9dd56] Fix missing gc_mark of simstackframe's arg_types
  * \ 
[e1d546ab,dc1f710bd5dafd9fb40ff431a8d86e646fa018a1,543258ab10120c1cefcec86cda62b \ 
408f740c164]
    Propagate spesh facts after guard elimination
  * [a1cfecd6] Fix getting garbage numbers after spesh optimized away
    smart_intify

Tooling/Build:

  * [9f82a46b] Add a test configuration for MinGW on Windows
  * [19db00f7] Update CI package index before installing packages
  * [5ab2a1d2] Remove unnecessary Windows-specific jobs from CI
  * [87cd6f5d] Only check for leaks on Ubuntu >=20.04
  * [67f5dddb] Run NQP/Rakudo under catchsegv in GNU/Linux CI jobs