Correct disasm printing of sized tex2dms (#3473)

The code meant to add an integer to the string indicating the dimension
of the resource binding didn't convert it to a string resulting in a
corrupted string.

Adds a test as well

Fixed #3335

tools/clang/test/HLSLFileCheck/hlsl/resource_binding/bindings_ms.hlsl

@@ -0,0 +1,53 @@
+// RUN: %dxc -E main -T ps_6_0 %s  | FileCheck %s
+
+// Ensure that MS texture bindings are reported correctly
+
+// CHECK: ; Resource Bindings:
+// CHECK: ;
+// CHECK: ; Name                                 Type  Format         Dim      ID      HLSL Bind  Count
+// CHECK: ; ------------------------------ ---------- ------- ----------- ------- -------------- ------
+// CHECK: ; Tex1                              texture     f32        2dMS      T0             t0     1
+// CHECK: ; Tex2                              texture     f32        2dMS      T1             t1     4
+// CHECK: ; Tex3                              texture     f32        2dMS      T2             t5unbounded
+// CHECK: ; Tex4                              texture     f32       2dMS8      T3      t0,space1     1
+// CHECK: ; Tex5                              texture     f32       2dMS8      T4      t1,space1     4
+// CHECK: ; Tex6                              texture     f32       2dMS8      T5      t5,space1unbounded
+// CHECK: ; TexArr1                           texture     f32   2darrayMS      T6      t0,space2     1
+// CHECK: ; TexArr2                           texture     f32   2darrayMS      T7      t1,space2     4
+// CHECK: ; TexArr3                           texture     f32   2darrayMS      T8      t5,space2unbounded
+// CHECK: ; TexArr4                           texture     f32  2darrayMS8      T9      t0,space3     1
+// CHECK: ; TexArr5                           texture     f32  2darrayMS8     T10      t1,space3     4
+// CHECK: ; TexArr6                           texture     f32  2darrayMS8     T11      t5,space3unbounded
+
+
+Texture2DMS<float4> Tex1 : register(t0);
+Texture2DMS<float4> Tex2[4] : register(t1);
+Texture2DMS<float4> Tex3[] : register(t5);  // unbounded
+Texture2DMS<float4,8> Tex4 : register(t0, space1);
+Texture2DMS<float4,8> Tex5[4] : register(t1, space1);
+Texture2DMS<float4,8> Tex6[] : register(t5, space1);  // unbounded
+
+Texture2DMSArray<float4> TexArr1 : register(t0, space2);
+Texture2DMSArray<float4> TexArr2[4] : register(t1, space2);
+Texture2DMSArray<float4> TexArr3[] : register(t5, space2);  // unbounded
+Texture2DMSArray<float4,8> TexArr4 : register(t0, space3);
+Texture2DMSArray<float4,8> TexArr5[4] : register(t1, space3);
+Texture2DMSArray<float4,8> TexArr6[] : register(t5, space3);  // unbounded
+
+float4 main(int4 a : A, float4 coord : TEXCOORD) : SV_TARGET
+{
+  return (float4)1.0
+    * Tex1.Load(a.xy, a.w)
+    * Tex2[a.w].sample[a.w][a.xy]
+    * Tex3[18].Load(a.xy, 0)
+    * Tex4.Load(a.xy, a.w)
+    * Tex5[a.w].sample[a.w][a.xy]
+    * Tex6[18].Load(a.xy, 0)
+    * TexArr1.Load(a.xyz, a.w)
+    * TexArr2[a.w].sample[a.w][a.xyz]
+    * TexArr3[18].Load(a.xyz, 0)
+    * TexArr4.Load(a.xyz, a.w)
+    * TexArr5[a.w].sample[a.w][a.xyz]
+    * TexArr6[18].Load(a.xyz, 0)
+    ;
+}

tools/clang/tools/dxcompiler/dxcdisassembler.cpp

@@ -419,7 +419,7 @@ void PrintResourceDim(DxilResourceBase &res, unsigned alignment,
       DxilResource *pRes = static_cast<DxilResource *>(&res);
       std::string dimName = res.GetResDimName();
       if (pRes->GetSampleCount())
-        dimName += pRes->GetSampleCount();
+        dimName += std::to_string(pRes->GetSampleCount());
       OS << right_justify(dimName, alignment);
     } break;
     default: