[browser][MT] System.Threading.Tasks.Task.SpinThenBlockingWait(...) uses non supported API

[buyaa-n]

Browser compat: System.Threading.Tasks.Task.SpinThenBlockingWait(...) references ManualResetEventSlim.Wait(..) not supported on browser

we need browser-specific implementation. Please create an issue and link if from here. I'm curious how this works today, I guess we are lucky and hit SpinWait all the time

@lewing

Originally posted by @marek-safar in #43363 (comment)

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Issue meta data

Issue content:
	Browser compat: System.Threading.Tasks.Task.SpinThenBlockingWait(...) references `ManualResetEventSlim.Wait(..)` not supported on browser we need browser-specific implementation. Please create an issue and link if from here. I'm curious how this works today, I guess we are lucky and hit SpinWait all the time @lewing Originally posted by @marek-safar in #43363 (comment) </td>
Issue author:		buyaa-n
Assignees:	-
Labels:	`arch-wasm`, `area-System.Threading.Tasks` </td>
Milestone:	-

[ilonatommy]

Where are we with working on this issue @kg? #44543 and #44544 sound like the same problem, so I will pin them here because fix might be similar.

[kg]

We haven't made much progress on this, I've been working on GC crashes.