Add friendly display of inline array instances in the debugger

[AlekseyTs]

Probably should display all elements how it is done for regular arrays.

I couldn't figure out the best area label to add to this issue. If you have write-permissions please help me learn by adding exactly one area label.

[AlekseyTs]

CC @cston, @jjonescz, @jcouv

[cston]

See also #68926.