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Try 2 for #106000 after CI decided to not run on it for some reason.

Fixes Issue #100751 and #100033 by injecting copy constructor calls in the JIT instead of injecting them in the IL and then using special hooks/interceptors to handle non-IL-supported/accessible scenarios.

Re-enable GS checks in Reverse P/Invokes now that we handle them correctly.

…he tests in JitStress (as they won't be fixed when the JIT introduces these extra checks when not asking the VM)"

This reverts commit 35d0de9.
…to do the generic method instantiation on every call (only when jitting)
…he original arg and don't do intermediate copy-constructor calls.

The bitwise copies are invalid, but there's no possible way for the user to see them. They'll always get passed a correctly copy-constructed value.
…rguments to the arg slot instead of tracing through locals.
…e parameter of this type will likely have multiple.
…ructor scenarios (by counting args in the correct direction)
@jkoritzinsky jkoritzinsky changed the title Copy ctor jit inject Inject IJW Copy Constructor calls in the JIT instead of in the IL stubs Aug 14, 2024
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Looks like there's one spot I missed with callis. There's some place that (only when running lots of the tests for some reason) that the modreqs get dropped in the calli signature. Still need to narrow it down.

…ructor scenarios (by counting args in the correct direction)
…already depend on a resolver to depend on the new token map
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Solved the issue, this is ready for review/merge.

@jkoritzinsky jkoritzinsky removed the NO-MERGE The PR is not ready for merge yet (see discussion for detailed reasons) label Aug 15, 2024
…rnal modifier" type for modifiers in internal signatures.
@jkoritzinsky jkoritzinsky merged commit cfa0cc5 into dotnet:main Aug 21, 2024
@jkoritzinsky jkoritzinsky deleted the copy-ctor-jit-inject branch August 21, 2024 21:43
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