Renamed Area to Rectangle

We introduced a new light type (Disc) which is also an Area light. To make it less confusing, we decieded to rename Area to Rectangle.

com.unity.render-pipelines.high-definition/HDRP/Editor/Lighting/HDLightEditor.cs

 
                 case LightShape.Rectangle:
                     // TODO: Currently if we use Area type as it is offline light in legacy, the light will not exist at runtime
-                    //m_BaseData.type.enumValueIndex = (int)LightType.Area;
+                    //m_BaseData.type.enumValueIndex = (int)LightType.Rectangle;
                     // In case of change, think to update InitDefaultHDAdditionalLightData()
                     settings.lightType.enumValueIndex = (int)LightType.Point;
                     m_AdditionalLightData.lightTypeExtent.enumValueIndex = (int)LightTypeExtent.Rectangle;
 
                 case LightShape.Line:
                     // TODO: Currently if we use Area type as it is offline light in legacy, the light will not exist at runtime
-                    //m_BaseData.type.enumValueIndex = (int)LightType.Area;
+                    //m_BaseData.type.enumValueIndex = (int)LightType.Rectangle;
                     settings.lightType.enumValueIndex = (int)LightType.Point;
                     m_AdditionalLightData.lightTypeExtent.enumValueIndex = (int)LightTypeExtent.Line;
                     EditorGUILayout.PropertyField(m_AdditionalLightData.shapeWidth, s_Styles.shapeWidthLine);

com.unity.render-pipelines.high-definition/HDRP/Lighting/GlobalIlluminationUtils.cs

                         break;
 
                     // Note: We don't support this type in HDRP, but ini just in case
-                    case LightType.Area:
+                    case LightType.Rectangle:
                         ld.orientation = l.transform.rotation;
                         ld.position = l.transform.position;
                         ld.range = l.range;

com.unity.render-pipelines.high-definition/HDRP/Lighting/Light/HDAdditionalLightData.cs

                     lightData.lightUnit = LightUnit.Lux;
                     lightData.intensity = k_DefaultDirectionalLightIntensity;
                     break;
-                case LightType.Area: // Rectangle by default when light is created
+                case LightType.Rectangle: // Rectangle by default when light is created
                     lightData.lightUnit = LightUnit.Lumen;
                     lightData.intensity = k_DefaultAreaLightIntensity;
                     break;
             }
 
             // Sanity check: lightData.lightTypeExtent is init to LightTypeExtent.Punctual (in case for unknow reasons we recreate additional data on an existing line)
-            if (light.type == LightType.Area && lightData.lightTypeExtent == LightTypeExtent.Punctual)
+            if (light.type == LightType.Rectangle && lightData.lightTypeExtent == LightTypeExtent.Punctual)
             {
                 lightData.lightTypeExtent = LightTypeExtent.Rectangle;
                 light.type = LightType.Point; // Same as in HDLightEditor

com.unity.render-pipelines.lightweight/LWRP/Editor/LightweightLightEditor.cs

         public bool spotOptionsValue { get { return typeIsSame && lightProperty.type == LightType.Spot; } }
         public bool pointOptionsValue { get { return typeIsSame && lightProperty.type == LightType.Point; } }
         public bool dirOptionsValue { get { return typeIsSame && lightProperty.type == LightType.Directional; } }
-        public bool areaOptionsValue { get { return typeIsSame && lightProperty.type == LightType.Area; } }
+        public bool areaOptionsValue { get { return typeIsSame && lightProperty.type == LightType.Rectangle; } }
-        public bool runtimeOptionsValue { get { return typeIsSame && (lightProperty.type != LightType.Area && lightProperty.type != LightType.Point && !settings.isCompletelyBaked); } }
+        public bool runtimeOptionsValue { get { return typeIsSame && (lightProperty.type != LightType.Rectangle && lightProperty.type != LightType.Point && !settings.isCompletelyBaked); } }
         public bool bakedShadowRadius { get { return typeIsSame && (lightProperty.type == LightType.Point || lightProperty.type == LightType.Spot) && settings.isBakedOrMixed; } }
         public bool bakedShadowAngle { get { return typeIsSame && lightProperty.type == LightType.Directional && settings.isBakedOrMixed; } }
         public bool shadowOptionsValue { get { return shadowTypeIsSame && lightProperty.shadows != LightShadows.None; } }