[perl #126675] [BUG][MOAR/NativeCall] Evaluating the size of a structure is wrongly done

[Tobias Leich via RT]

The fix for this misalignment is: 
https://github.com/MoarVM/MoarVM/commit/7b382acd61
Test got added here: https://github.com/rakudo/rakudo/commit/deeec10a2e

Closing ticket as resolved.