One awesome GC feature we will use in Mir!

[9il]

I just remember that D's GC has NO_SCAN [1] attribute!

This will be added by default when for Mir allocations if type 
representation tuple has not references. For example, are 
Slice!(double*, 2) should never be scanned by GC, but it will be 
in GC heap until something refers it.

Let me know if you have ideas how to further improve memory 
management and required API in Mir and Lubeck.

[1] https://dlang.org/phobos/core_memory.html#.GC.BlkAttr.NO_SCAN

Best,
Ilya