Renamed TexturePadding _Source to _InOutTexture

ScriptableRenderPipeline/Core/CoreRP/CoreResources/TexturePadding.compute

 // Texture buffers
 // ------------------------------------------------
 
-RW_TEXTURE2D(float4, _Source);
+RW_TEXTURE2D(float4, _InOutTexture);
 
 // ------------------------------------------------
 // Constant buffers
     const int2 loadId = targetId - int2(1 + dispatchThreadId.x, 0);
 #endif
 
-   _Source[targetId] = _Source[loadId];
+   _InOutTexture[targetId] = _InOutTexture[loadId];
 }

ScriptableRenderPipeline/Core/CoreRP/CoreResources/TexturePadding.cs

     public class TexturePadding
     {
         static readonly int _RectOffset = Shader.PropertyToID("_RectOffset");
-        static readonly int _Source = Shader.PropertyToID("_Source");
+        static readonly int _InOutTexture = Shader.PropertyToID("_InOutTexture");
 
         ComputeShader m_CS;
         int m_KMainTopRight;
             m_KMainTop          = m_CS.FindKernel("KMainTop");
             m_KMainRight        = m_CS.FindKernel("KMainRight");
         }
-        public void Pad(CommandBuffer cmd, RenderTexture source, RectInt from, RectInt to)
+        public void Pad(CommandBuffer cmd, RenderTexture inOutTexture, RectInt from, RectInt to)
-                cmd.SetComputeTextureParam(m_CS, m_KMainRight, _Source, source);
+                cmd.SetComputeTextureParam(m_CS, m_KMainRight, _InOutTexture, inOutTexture);
-                cmd.SetComputeTextureParam(m_CS, m_KMainTop, _Source, source);
+                cmd.SetComputeTextureParam(m_CS, m_KMainTop, _InOutTexture, inOutTexture);
-                cmd.SetComputeTextureParam(m_CS, m_KMainTopRight, _Source, source);
+                cmd.SetComputeTextureParam(m_CS, m_KMainTopRight, _InOutTexture, inOutTexture);
                 cmd.DispatchCompute(m_CS, m_KMainTopRight, to.width - from.width, to.height - from.height, 1);
             }
         }