DXC does not correctly handle local editable resource arrays

Description
DXC does not handle local resource arrays correctly.

Steps to Reproduce

RWBuffer<int> X : register(u0);
RWBuffer<int> Y : register(u1);

void SomeFn(RWBuffer<int> Arr[2], uint Idx, int Val0) {
  Arr[0] = Y;
  Arr[0][Idx] = Val0;
}

[numthreads(4,1,1)]
void main(uint GI : SV_GroupIndex) {
  RWBuffer<int> Arr[2] = {X, Y};
  SomeFn(Arr, GI, 1);
  Arr[0][GI] = 2;
}

Expected Behavior

X: [ 2, 2, 2, 2 ]
Y: [ 1, 1, 1, 1 ]

Actual Behavior

X: [ 0, 0, 0, 0 ]
Y: [ 2, 2, 2, 2 ]

Environment

• DXC main 8/1/2025
• Windows/DirectX

Start by reproducing the supplied HLSL shader with DXC on Windows/DirectX and compare the observed resource-array writes with the expected X and Y values. Trace the compiler path handling local editable resource arrays; done means the example produces the expected output and a regression test covers the case.