[mono][interp] Make sure containing klass has field offsets initialized

[BrzVlad]

Fix regression from #70649. That PR exposed a case where we coincidentally initialized a class while emitting a ctor call. After the unoptimized codegen change, that newobj emit path was no longer hit. Setup the class fields explicitly when generating code that needs them.

#73180

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Issue Details

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Fix regression from #70649. That PR exposed a case where we coincidentally initialized a class while emitting a ctor call. After the unoptimized codegen change, that newobj emit path was no longer hit. Setup the class fields explicitly when generating code that needs them.

Author:	BrzVlad
Assignees:	-
Labels:	area-Codegen-Interpreter-mono
Milestone:	-

[lambdageek]

/azp run runtime-wasm

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[BrzVlad]

Are these wasm failures expected ? @radical ?

[radical]

@BrzVlad Yes, these are on main too. You can ignore them here.