Remove potentially unitialized variable message

ScriptableRenderPipeline/Core/CoreRP/ShaderLibrary/Debug.hlsl

     }
     return GetDebugMipColor(originalColor, tex, texelSize, uv);
 }
+
+// mipInfo :
+// x = quality setings minStreamingMipLevel
+// y = original mip count for texture
+// z = desired on screen mip level
+// w = 0
+float3 GetDebugMipReductionColor(Texture2D tex, float4 mipInfo)
+{
+    float3 outColor = float3(1.0, 0.0, 1.0); // Can't calculate without original mip count - return magenta
-float3 GetDebugMipReductionColor(Texture2D tex, float4 mipInfo)
-{
-        // mipInfo :
-        // x = quality setings minStreamingMipLevel
-        // y = original mip count for texture
-        // z = desired on screen mip level
-        // w = 0
-
-        return float3(0, mipCol, 0);
+        outColor = float3(0, mipCol, 0);
-    // Can't calculate without original mip count - return magenta
-    return float3(1.0, 0.0, 1.0);
+    return outColor;
 }
 
 // Convert an arbitrary range to color base on threshold provide to the function, threshold must be in growing order

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Debug/DebugDisplay.hlsl

 
 float3 GetTextureDataDebug(uint paramId, float2 uv, Texture2D tex, float4 texelSize, float4 mipInfo, float3 originalColor)
 {
+    float3 outColor = originalColor;
+
-        return GetDebugMipColorIncludingMipReduction(originalColor, tex, texelSize, uv, mipInfo);
+        outColor = GetDebugMipColorIncludingMipReduction(originalColor, tex, texelSize, uv, mipInfo);
+        break;
-        return GetDebugMipCountColor(originalColor, tex);
+        outColor = GetDebugMipCountColor(originalColor, tex);
+        break;
-        return GetDebugMipReductionColor(tex, mipInfo);
+        outColor = GetDebugMipReductionColor(tex, mipInfo);
+        break;
-        return GetDebugStreamingMipColor(tex, mipInfo);
+        outColor = GetDebugStreamingMipColor(tex, mipInfo);
+        break;
-        return GetDebugStreamingMipColorBlended(originalColor, tex, mipInfo);
+        outColor = GetDebugStreamingMipColorBlended(originalColor, tex, mipInfo);
+        break;
-    return originalColor;
+    return outColor;
 }
 
 // DebugFont code assume black and white font with texture size 256x128 with bloc of 16x16