Assertion `argCnt < MAX_PTRARG_OFS` failed

[MichalStrehovsky]

Failing in the x86 pri1 test runs. This looks like regular C# code, not clear what the problem is.

The test in question is https://github.com/dotnet/runtime/tree/9c2bfb9ab73961d149ea263c7a78606bfb4bc0b4/src/tests/JIT/Regression/CLR-x86-JIT/v2.1/DDB/b202743.

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Microsoft Visual C++ Runtime Library
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Debug Assertion Failed!

Program: ...-2a44d98b000a\Regression_1\workitems\Regression_1\b202743.exe
File: D:\a\_work\1\s\src\coreclr\vm\gc_unwind_x86.inl
Line: 1826

Expression: argCnt < MAX_PTRARG_OFS

For information on how your program can cause an assertion
failure, see the Visual C++ documentation on asserts.

(Press Retry to debug the application)

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Abort   Retry   Ignore   
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[filipnavara]

I never ported the bitvector code used for large number of method arguments. Looks like it finally caught me up. Weirdly the test just uses one large struct argument but I suppose it's some ABI thing I overlooked.