corefx test failure: Assert failure: !"You cannot use this function for arbitrary value types. You must preallocate a box object and copy the value in yourself."

[BruceForstall]

https://ci.dot.net/job/dotnet_coreclr/job/master/view/x86/job/jitstress/job/x86_checked_windows_nt_corefx_baseline/462/consoleText

many tests fail with:

  Assert failure(PID 4732 [0x0000127c], Thread: 3760 [0x0eb0]): !"You cannot use this function for arbitrary value types. You must preallocate a box object and copy the value in yourself."
  
  CORECLR! InvokeUtil::CreateObjectAfterInvoke + 0x1B4 (0x7197b820)
  CORECLR! RuntimeMethodHandle::InvokeMethod + 0xCF3 (0x71ab9013)
  SYSTEM.PRIVATE.CORELIB! <no symbol> + 0x0 (0x70fde7e9)
  SYSTEM.PRIVATE.CORELIB! <no symbol> + 0x0 (0x70fe0217)
  SYSTEM.PRIVATE.CORELIB! <no symbol> + 0x0 (0x70fe01c2)
  CORECLR! PreStubWorker + 0x3D8 (0x717618bf)
      File: d:\j\workspace\x86_checked_w---fbe14ed2\src\vm\invokeutil.cpp Line: 693
      Image: D:\j\workspace\x86_checked_w---fbe14ed2\_\fx\bin\testhost\netcoreapp-Windows_NT-Release-x86\dotnet.exe

Also seen on ARM.

[RussKeldorph]

@jkotas @jeffschwMSFT @sergiy-k Could you help with triage?

[jkotas]

Fixed by dotnet/coreclr#17671