JIT: use explicit cast away GC when passing byref to unmanaged callees

[AndyAyersMS]

Revise the fix done in #39105 to make the cast from byref to native int via an explicit cast, rather than retyping the node.

Fixes #107045.

[AndyAyersMS]

@EgorBo PTAL
cc @dotnet/jit-contrib

Two diffs expected (in Tier0 code). This IL comes from C++/CLI in wpf, so not planning on adding a test case.

[AndyAyersMS]

ILC failing with

    X64Avx2 -> /__w/1/s/artifacts/tests/coreclr/linux.x64.Debug/nativeaot/SmokeTests/HardwareIntrinsics/X64Avx2/X64Avx2.dll
    Generating native code
    Unhandled exception: System.AggregateException: One or more errors occurred. (Object synchronization method was called from an unsynchronized block of code.)
     ---> System.Threading.SynchronizationLockException: Object synchronization method was called from an unsynchronized block of code.
       at System.Threading.ObjectHeader.Release(Object) + 0x14a
       at System.Threading.Monitor.Exit(Object) + 0x17
       at System.Resources.ResourceReader.GetValueForNameIndex(Int32) + 0x253
       at System.Resources.ResourceReader.ResourceEnumerator.get_Value() + 0xdd
       at ILCompiler.SubstitutionProvider.AssemblyFeatureInfo..ctor(EcmaModule, Logger, IReadOnlyDictionary`2, BodyAndFieldSubstitutions) + 0x5eb

Seems like it is unrelated... possibly #104340?

[AndyAyersMS]

The other failure is similar (but maybe not the same) as #103525

    System.Numerics.Tensors.Tests.TensorSpanTests.TensorExtensionsSpanInTOut<Single>(tensorPrimitivesOperation: TensorPrimitivesSpanInTOut`1 { Method = Single Max(System.ReadOnlySpan`1[System.Single]), Target = null }, tensorOperation: TensorSpanInTOut`1 { Method = Single Max[Single](System.Numerics.Tensors.ReadOnlyTensorSpan`1[System.Single] ByRef), Target = null }) [FAIL]
      Assert.All() Failure: 1 out of 12 items in the collection did not pass.
      [11]: Item:  [1, 2, 3, 4, 5, ���]
            Error: Index was outside the bounds of the array.
      Stack Trace:
        /_/src/libraries/System.Numerics.Tensors/tests/TensorSpanTests.cs(236,0): at System.Numerics.Tensors.Tests.TensorSpanTests.TensorExtensionsSpanInTOut[T](TensorPrimitivesSpanInTOut`1 tensorPrimitivesOperation, TensorSpanInTOut`1 tensorOperation)