[SPIRV][HLSL] Incorrect binding attributes on resource arrays


See https://godbolt.org/z/eWWaoT9bq. Note that `%21`  (the variable named "b") has two binding attributes:

```
        OpDecorate %21 DescriptorSet 0
        OpDecorate %21 Binding 0
        OpDecorate %21 Binding 1
```

It should only have the binding 0.

```
RWStructuredBuffer<float> b[4];

[numthreads(1,1,1)]
void main() {
  b[0][0] = b[1][0];
}
```