Multidimensional `ConstantBuffer` array usage triggers assert

[chaoticbob]

The shader below is hitting an assert in slang-emit-spirv::emitGlobalInst() at due to ConstantBuffer<Foo> myCB2[2][2]:

        case kIROp_ConstantBufferType:
            SLANG_UNEXPECTED("Constant buffer type remaining in spirv emit");

Multidimensional Texture2D and SamplerState work fine.

CMD

slangc.exe -target spirv -lang slang -D__spirv__ -emit-spirv-directly -profile ps_6_0 -entry main shader.hlsl

Shader

struct Foo {
  float4 a;
  int2 b;
};

ConstantBuffer<Foo> myCB2[2][2]     : register(b0, space1);
Texture2D           myTex[2][3]     : register(t1, space1);
SamplerState        mySampler[3][2] : register(s2, space1);

struct VSOutput {
  float2 TexCoord : TEXCOORD;
};

float4 main(VSOutput input) : SV_TARGET {
  float4 color = (float4)0;
  color = myTex[1][2].Sample(mySampler[1][0], input.TexCoord);
  return float4(1.0, 1.0, 1.0, 1.0) * myCB2[1][0].a + color;
}