Update hlsl generator for nested class and regenerate file for HD

Assets/ScriptableRenderPipeline/HDRenderPipeline/Lighting/LightDefinition.cs.hlsl

 //
 #define ENVCONSTANTS_SPEC_CUBE_LOD_STEP (6)
 
+//
+// UnityEngine.Experimental.Rendering.HDPipeline.StencilLightingUsage:  static fields
+//
+#define STENCILLIGHTINGUSAGE_NO_LIGHTING (0)
+#define STENCILLIGHTINGUSAGE_SPLIT_LIGHTING (1)
+#define STENCILLIGHTINGUSAGE_REGULAR_LIGHTING (2)
+
 // Generated from UnityEngine.Experimental.Rendering.HDPipeline.LightData
 // PackingRules = Exact
 struct LightData

Assets/ScriptableRenderPipeline/HDRenderPipeline/Material/Builtin/BuiltinData.cs.hlsl

 #ifndef BUILTINDATA_CS_HLSL
 #define BUILTINDATA_CS_HLSL
 //
-// UnityEngine.Experimental.Rendering.HDPipeline.Builtin.BuiltinData:  static fields
+// UnityEngine.Experimental.Rendering.HDPipeline.Builtin+BuiltinData:  static fields
 //
 #define DEBUGVIEW_BUILTIN_BUILTINDATA_OPACITY (100)
 #define DEBUGVIEW_BUILTIN_BUILTINDATA_BAKE_DIFFUSE_LIGHTING (101)
 #define DEBUGVIEW_BUILTIN_BUILTINDATA_DEPTH_OFFSET (107)
 
 //
-// UnityEngine.Experimental.Rendering.HDPipeline.Builtin.LightTransportData:  static fields
+// UnityEngine.Experimental.Rendering.HDPipeline.Builtin+LightTransportData:  static fields
-// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Builtin.BuiltinData
+// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Builtin+BuiltinData
 // PackingRules = Exact
 struct BuiltinData
 {
     float depthOffset;
 };
 
-// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Builtin.LightTransportData
+// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Builtin+LightTransportData
 // PackingRules = Exact
 struct LightTransportData
 {

Assets/ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Lit.cs.hlsl

 #ifndef LIT_CS_HLSL
 #define LIT_CS_HLSL
 //
-// UnityEngine.Experimental.Rendering.HDPipeline.Lit.MaterialId:  static fields
+// UnityEngine.Experimental.Rendering.HDPipeline.Lit+MaterialId:  static fields
 //
 #define MATERIALID_LIT_SSS (0)
 #define MATERIALID_LIT_STANDARD (1)
 
 //
-// UnityEngine.Experimental.Rendering.HDPipeline.Lit.MaterialFeatureFlags:  static fields
+// UnityEngine.Experimental.Rendering.HDPipeline.Lit+MaterialFeatureFlags:  static fields
 //
 #define FEATURE_FLAG_MATERIAL_LIT_SSS (4096)
 #define FEATURE_FLAG_MATERIAL_LIT_STANDARD (8192)
 //
-// UnityEngine.Experimental.Rendering.HDPipeline.Lit.SurfaceData:  static fields
+// UnityEngine.Experimental.Rendering.HDPipeline.Lit+SurfaceData:  static fields
 //
 #define DEBUGVIEW_LIT_SURFACEDATA_BASE_COLOR (1000)
 #define DEBUGVIEW_LIT_SURFACEDATA_SPECULAR_OCCLUSION (1001)
 #define DEBUGVIEW_LIT_SURFACEDATA_SPECULAR_COLOR (1013)
 
 //
-// UnityEngine.Experimental.Rendering.HDPipeline.Lit.TransmissionType:  static fields
+// UnityEngine.Experimental.Rendering.HDPipeline.Lit+TransmissionType:  static fields
 //
 #define TRANSMISSIONTYPE_NONE (0)
 #define TRANSMISSIONTYPE_REGULAR (1)
-// UnityEngine.Experimental.Rendering.HDPipeline.Lit.BSDFData:  static fields
+// UnityEngine.Experimental.Rendering.HDPipeline.Lit+BSDFData:  static fields
 //
 #define DEBUGVIEW_LIT_BSDFDATA_DIFFUSE_COLOR (1030)
 #define DEBUGVIEW_LIT_BSDFDATA_FRESNEL0 (1031)
 #define DEBUGVIEW_LIT_BSDFDATA_TRANSMITTANCE (1047)
 
 //
-// UnityEngine.Experimental.Rendering.HDPipeline.Lit.GBufferMaterial:  static fields
+// UnityEngine.Experimental.Rendering.HDPipeline.Lit+GBufferMaterial:  static fields
-// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Lit.SurfaceData
+// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Lit+SurfaceData
 // PackingRules = Exact
 struct SurfaceData
 {
     float3 specularColor;
 };
 
-// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Lit.BSDFData
+// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Lit+BSDFData
 // PackingRules = Exact
 struct BSDFData
 {

Assets/ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/Unlit.cs.hlsl

 #ifndef UNLIT_CS_HLSL
 #define UNLIT_CS_HLSL
 //
-// UnityEngine.Experimental.Rendering.HDPipeline.Unlit.SurfaceData:  static fields
+// UnityEngine.Experimental.Rendering.HDPipeline.Unlit+SurfaceData:  static fields
-// UnityEngine.Experimental.Rendering.HDPipeline.Unlit.BSDFData:  static fields
+// UnityEngine.Experimental.Rendering.HDPipeline.Unlit+BSDFData:  static fields
-// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Unlit.SurfaceData
+// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Unlit+SurfaceData
 // PackingRules = Exact
 struct SurfaceData
 {
-// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Unlit.BSDFData
+// Generated from UnityEngine.Experimental.Rendering.HDPipeline.Unlit+BSDFData
 // PackingRules = Exact
 struct BSDFData
 {

Assets/ScriptableRenderPipeline/ShaderGenerator/Editor/CSharpToHLSL.cs

                     {
                         if (attr is GenerateHLSL)
                         {
-                            var parent = type.DeclaringType;
-                            if (parent != null)
+                            ShaderTypeGenerator gen;
+                            if (s_TypeName.TryGetValue(type.FullName, out gen))
-                                Debug.LogError("The GenerateHLSL attribute not supported on nested classes (" + type.FullName + "), skipping.");
-                            }
-                            else
-                            {
-                                ShaderTypeGenerator gen;
-                                if (s_TypeName.TryGetValue(type.FullName, out gen))
-                                {
-                                    Debug.LogError("Duplicate typename with the GenerateHLSL attribute detected: " + type.FullName +
-                                        " declared in both " + gen.type.Assembly.FullName + " and " + type.Assembly.FullName + ".  Skipping the second instance.");
-                                }
-                                s_TypeName[type.FullName] = new ShaderTypeGenerator(type, attr as GenerateHLSL);
+                                Debug.LogError( "Duplicate typename with the GenerateHLSL attribute detected: " + type.FullName +
+                                                " declared in both " + gen.type.Assembly.FullName + " and " + type.Assembly.FullName + ".  Skipping the second instance.");
+                            s_TypeName[type.FullName] = new ShaderTypeGenerator(type, attr as GenerateHLSL);
                         }
                     }
                 }
                         {
                             writer.Write(gen.EmitFunctions() + "\n");
                         }
-                    }                    
+                    }
 
                     writer.Write("\n#endif\n");
 

Assets/ScriptableRenderPipeline/ShaderGenerator/Editor/ShaderTypeGeneration.cs

             public string fieldName;
             public Type fieldType;
             public bool isDirection;
-            public bool isSRGB;            
+            public bool isSRGB;
         }
 
         void Error(string error)
             if (!attr.needParamDebug)
                 return shaderText;
 
-            // Specific to HDRenderPipeline            
+            // Specific to HDRenderPipeline
             string lowerStructName = type.Name.ToLower();
 
             shaderText += "//\n";
                     {
                         shaderText += "            result = " + lowerStructName + "." + debugField.fieldName + ".xxx * 0.5 + 0.5;\n";
                     }
-                    else 
+                    else
                     {
                         shaderText += "            result = " + lowerStructName + "." + debugField.fieldName + ".xxx;\n";
                     }
                     {
                         shaderText += "            result = " + lowerStructName + "." + debugField.fieldName + " * 0.5 + 0.5;\n";
                     }
-                    else 
+                    else
-                    }                    
+                    }
                 }
                 else if (debugField.fieldType == typeof(Vector4))
                 {
                 }
                 else // This case left is suppose to be a complex structure. Either we don't support it or it is an enum. Consider it is an enum with GetIndexColor, user can override it if he want.
                 {
-                    shaderText += "            result = GetIndexColor(" + lowerStructName + "." + debugField.fieldName + ");\n";       
+                    shaderText += "            result = GetIndexColor(" + lowerStructName + "." + debugField.fieldName + ");\n";
-                
+
                 if (debugField.isSRGB)
                 {
                     shaderText += "            needLinearToSRGB = true;\n";
             }
 
             shaderText += "    }\n";
-            shaderText += "}\n";            
+            shaderText += "}\n";
 
             return shaderText;
         }
 
                 if (attr.needParamDebug)
                 {
-                    string subNamespace = type.Namespace.Substring(type.Namespace.LastIndexOf((".")) + 1);
+                    string className = type.FullName.Substring(type.FullName.LastIndexOf((".")) + 1); // ClassName include nested class
+                    className = className.Replace('+', '_'); // FullName is Class+NestedClass replace by Class_NestedClass
-                    string defineName = ("DEBUGVIEW_" + subNamespace + "_" + type.Name + "_" + name).ToUpper();
+                    string defineName = ("DEBUGVIEW_" + className + "_" + name).ToUpper();
                     m_Statics[defineName] = Convert.ToString(attr.paramDefinesStart + debugCounter++);
 
                     bool isDirection = false;