Fix stack unwinding for NativeAOT on Unix

[AntonLapounov]

Fix intermittent failures for running ./build.sh on Unix:

  crossgen2 -> /runtime/artifacts/bin/coreclr/Linux.x64.Debug/crossgen2/linux-x64/publish/
  crossgen2: /runtime/src/coreclr/nativeaot/Runtime/unix/UnixNativeCodeManager.cpp:296: virtual bool UnixNativeCodeManager::UnwindStackFrame(MethodInfo *, REGDISPLAY *, PInvokeTransitionFrame **): Assertion `pNativeMethodInfo->pMainLSDA == pNativeMethodInfo->pLSDA' failed.
  Aborted
/runtime/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Crossgen2.sfxproj(70,5): error MSB3073: The command "/runtime/artifacts/bin/coreclr/Linux.x64.Debug/crossgen2/linux-x64/publish/crossgen2 /runtime/artifacts/bin/coreclr/Linux.x64.Debug/IL/System.Private.CoreLib.dll --out /runtime/artifacts/obj/Microsoft.NETCore.App.Crossgen2/Debug/net7.0/linux-x64/S.P.C.tmp" exited with code 134.

Below is an example of the call stack that fails the assertion when being unwound:

#38 S_P_CoreLib_System_Exception__ToString ()
    at /runtime/src/libraries/System.Private.CoreLib/src/System/Exception.cs:124
#39 ILCompiler_ReadyToRun_Internal_JitInterface_CorInfoImpl__AllocException_0 ()
    at /runtime/src/coreclr/tools/Common/JitInterface/CorInfoImpl.cs:160
#40 ILCompiler_ReadyToRun_Internal_JitInterface_CorInfoImpl___canGetCookieForPInvokeCalliSig ()
    at /runtime/src/coreclr/tools/Common/JitInterface/CorInfoBase.cs:2063
#41 RhpCallCatchFunclet ()
    at /runtime/src/coreclr/nativeaot/Runtime/amd64/ExceptionHandling.S:335
#42 S_P_CoreLib_System_Runtime_EH__DispatchEx ()
    at /runtime/src/coreclr/nativeaot/Runtime.Base/src/System/Runtime/ExceptionHandling.cs:700
#43 S_P_CoreLib_System_Runtime_EH__RhThrowEx ()
    at /runtime/src/coreclr/nativeaot/Runtime.Base/src/System/Runtime/ExceptionHandling.cs:570
#44 RhpThrowEx () at /runtime/src/coreclr/nativeaot/Runtime/amd64/ExceptionHandling.S:152
#45 ILCompiler_ReadyToRun_Internal_JitInterface_CorInfoImpl__canGetCookieForPInvokeCalliSig ()
    at /runtime/src/coreclr/tools/aot/ILCompiler.ReadyToRun/JitInterface/CorInfoImpl.ReadyToRun.cs:2811
#46 ILCompiler_ReadyToRun_Internal_JitInterface_CorInfoImpl___canGetCookieForPInvokeCalliSig ()
    at /runtime/src/coreclr/tools/Common/JitInterface/CorInfoBase.cs:2059
#47 ?? ()
   from /runtime/artifacts/bin/coreclr/Linux.x64.Debug/crossgen2/linux-x64/publish/libjitinterface_x64.so

Note that frame 40 above corresponds to the catch funclet of this reverse P/Invoke method:

runtime/src/coreclr/tools/Common/JitInterface/CorInfoBase.cs

Lines 2053 to 2066 in b27b298

	[UnmanagedCallersOnly]
	static byte _canGetCookieForPInvokeCalliSig(IntPtr thisHandle, IntPtr* ppException, CORINFO_SIG_INFO* szMetaSig)
	{
	var _this = GetThis(thisHandle);
	try
	{
	return _this.canGetCookieForPInvokeCalliSig(szMetaSig) ? (byte)1 : (byte)0;
	}
	catch (Exception ex)
	{
	*ppException = _this.AllocException(ex);
	return default;
	}
	}

The fix is to use the funclet's LSDA instead of the main LSDA — similar to what we do on Windows.

Related changes: dotnet/corert#2157, dotnet/corert#4487.
Fixes #70543.

[jkotas]

Thank you for fixing this! We should backport to the fix to 7.0.

[AntonLapounov]

The failure in WasmBuildTests is #74328.

[AntonLapounov]

/backport to release/7.0

[github-actions]

Started backporting to release/7.0: https://github.com/dotnet/runtime/actions/runs/2937328274