Update MemoryPacking for array.new_data (#5229)

* Update MemoryPacking for array.new_data

The MemoryPacking pass looks at all instructions that reference memory segments
to determine how they can be optimized. #5214 introduced a new instruction that
references memory segments, array.new_data, but did not update MemoryPacking
accordingly. This omission meant that MemoryPacking could produce invalid or
misoptimized modules in the presence of array.new_data.

Fix the problem by making MemoryPacking aware of array.new_data. Consider
array.new_data when determining whether a segment is used and update
array.new_data to reflect the new, optimized segment numberings afterward. To
keep things simple, do not try to split any segment that is referred to by
a array.new_data instruction.

* fix

* Add test explanations

0 files changed, 0 insertions, 0 deletions