Prereq5 for async drop - AsyncDropGlue & FutureDropPoll instances preparation

[azhogin]

This is subpart 5 PR of #123948, just for review purposes.

AsyncDropGlue instance for async_drop_in_place<T>(...)::{{closure0}} shim generation for not coroutine type.
FutureDropPoll instance for async_drop_in_place<T>(...)::{{closure0}} shim generation for coroutine type.

Those have different behaviour, because for normal type we are generating normal (sync) drop glue generation using drop elaboration and then StateTransform pass for transformation into coroutine (later commits). And for coroutine we need to poll this coroutine async drop poll function with the same coroutine layout.

Review only last commit, based on previous PR #129739

[rustbot]

Some changes occurred to MIR optimizations

cc @rust-lang/wg-mir-opt

This PR changes Stable MIR

cc @oli-obk, @celinval, @ouz-a

Some changes occurred in compiler/rustc_codegen_cranelift

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Some changes occurred to the CTFE / Miri engine

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This PR changes MIR

cc @oli-obk, @RalfJung, @JakobDegen, @davidtwco, @celinval, @vakaras

[bors]

☔ The latest upstream changes (presumably #129313) made this pull request unmergeable. Please resolve the merge conflicts.

[bors]

☔ The latest upstream changes (presumably #130165) made this pull request unmergeable. Please resolve the merge conflicts.

[davidtwco]

r? @nikomatsakis is going to look into this

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