Log location of intrinsic tasks

src/Build.UnitTests/BackEnd/NodePackets_Tests.cs

@@ -158,6 +158,8 @@ private static TaskParameterEventArgs CreateTaskParameter()
                 items,
                 logItemMetadata: true,
                 DateTime.MinValue);
+            result.LineNumber = 30000;
+            result.ColumnNumber = 50;
 
             // normalize line endings as we can't rely on the line endings of NodePackets_Tests.cs
             Assert.Equal(@"Task Parameter:
@@ -433,6 +435,8 @@ private void CompareLogMessagePackets(LogMessagePacket left, LogMessagePacket ri
                     Assert.Equal(leftTaskParameter.Message, rightTaskParameter.Message);
                     Assert.Equal(leftTaskParameter.BuildEventContext, rightTaskParameter.BuildEventContext);
                     Assert.Equal(leftTaskParameter.Timestamp, rightTaskParameter.Timestamp);
+                    Assert.Equal(leftTaskParameter.LineNumber, rightTaskParameter.LineNumber);
+                    Assert.Equal(leftTaskParameter.ColumnNumber, rightTaskParameter.ColumnNumber);
                     break;
 
                 case LoggingEventType.TaskFinishedEvent:

src/Build.UnitTests/BuildEventArgsSerialization_Tests.cs

@@ -327,11 +327,15 @@ public void RoundtripTaskParameterEventArgs()
                 new TaskItemData("ItemSpec2", Enumerable.Range(1,3).ToDictionary(i => i.ToString(), i => i.ToString() + "value"))
             };
             var args = new TaskParameterEventArgs(TaskParameterMessageKind.TaskOutput, "ItemName", items, true, DateTime.MinValue);
+            args.LineNumber = 265;
+            args.ColumnNumber = 6;
 
             Roundtrip(args,
                 e => e.Kind.ToString(),
                 e => e.ItemType,
                 e => e.LogItemMetadata.ToString(),
+                e => e.LineNumber.ToString(),
+                e => e.ColumnNumber.ToString(),
                 e => TranslationHelpers.GetItemsString(e.Items));
         }
 

src/Build/BackEnd/Components/RequestBuilder/IntrinsicTasks/ItemGroupIntrinsicTask.cs

@@ -218,7 +218,8 @@ private void ExecuteAdd(ProjectItemGroupTaskItemInstance child, ItemBucket bucke
                     TaskParameterMessageKind.AddItem,
                     child.ItemType,
                     itemsToAdd,
-                    logItemMetadata: true);
+                    logItemMetadata: true,
+                    child.Location);
             }
 
             // Now add the items we created to the lookup.
@@ -261,7 +262,8 @@ private void ExecuteRemove(ProjectItemGroupTaskItemInstance child, ItemBucket bu
                         TaskParameterMessageKind.RemoveItem,
                         child.ItemType,
                         itemsToRemove,
-                        logItemMetadata: true);
+                        logItemMetadata: true,
+                        child.Location);
                 }
 
                 bucket.Lookup.RemoveItems(itemsToRemove);

src/Build/BackEnd/Components/RequestBuilder/IntrinsicTasks/ItemGroupLoggingHelper.cs

@@ -252,15 +252,19 @@ internal static void LogTaskParameter(
             TaskParameterMessageKind messageKind,
             string itemType,
             IList items,
-            bool logItemMetadata)
+            bool logItemMetadata,
+            IElementLocation location = null)
         {
             var args = CreateTaskParameterEventArgs(
                 loggingContext.BuildEventContext,
                 messageKind,
                 itemType,
                 items,
                 logItemMetadata,
-                DateTime.UtcNow);
+                DateTime.UtcNow,
+                location?.Line ?? 0,
+                location?.Column ?? 0);
+
             loggingContext.LogBuildEvent(args);
         }
 
@@ -270,7 +274,9 @@ internal static TaskParameterEventArgs CreateTaskParameterEventArgs(
             string itemType,
             IList items,
             bool logItemMetadata,
-            DateTime timestamp)
+            DateTime timestamp,
+            int line = 0,
+            int column = 0)
         {
             // Only create a snapshot of items if we use AppDomains
 #if FEATURE_APPDOMAIN
@@ -284,6 +290,8 @@ internal static TaskParameterEventArgs CreateTaskParameterEventArgs(
                 logItemMetadata,
                 timestamp);
             args.BuildEventContext = buildEventContext;
+            args.LineNumber = line;
+            args.ColumnNumber = column;
             return args;
         }
 

src/Build/Logging/BinaryLogger/BuildEventArgsReader.cs

@@ -658,7 +658,9 @@ private BuildEventArgs ReadTaskParameterEventArgs()
                 itemType,
                 items,
                 logItemMetadata: true,
-                fields.Timestamp);
+                fields.Timestamp,
+                fields.LineNumber,
+                fields.ColumnNumber);
             e.ProjectFile = fields.ProjectFile;
             return e;
         }

src/Framework/BuildMessageEventArgs.cs

@@ -322,12 +322,20 @@ internal override void CreateFromStream(BinaryReader reader, int version)
         /// <summary>
         /// Line number of interest in associated file. 
         /// </summary>
-        public int LineNumber => lineNumber;
+        public int LineNumber
+        {
+            get => lineNumber;
+            internal set => lineNumber = value;
+        }
 
         /// <summary>
         /// Column number of interest in associated file. 
         /// </summary>
-        public int ColumnNumber => columnNumber;
+        public int ColumnNumber
+        {
+            get => columnNumber;
+            internal set => columnNumber = value;
+        }
 
         /// <summary>
         /// Ending line number of interest in associated file. 

src/Framework/TaskParameterEventArgs.cs

@@ -87,6 +87,8 @@ internal override void CreateFromStream(BinaryReader reader, int version)
             BuildEventContext = reader.ReadOptionalBuildEventContext();
             Kind = (TaskParameterMessageKind)reader.Read7BitEncodedInt();
             ItemType = reader.ReadOptionalString();
+            LineNumber = reader.Read7BitEncodedInt();
+            ColumnNumber = reader.Read7BitEncodedInt();
             Items = ReadItems(reader);
         }
 
@@ -134,6 +136,8 @@ internal override void WriteToStream(BinaryWriter writer)
             writer.WriteOptionalBuildEventContext(BuildEventContext);
             writer.Write7BitEncodedInt((int)Kind);
             writer.WriteOptionalString(ItemType);
+            writer.Write7BitEncodedInt(LineNumber);
+            writer.Write7BitEncodedInt(ColumnNumber);
             WriteItems(writer, Items);
         }