Readding logging entry point

Author: davilimap

src/Microsoft.VisualStudio.Jdt.Tests/JsonTransformationTestLogger.cs

@@ -56,6 +56,12 @@ public void LogMessage(string message)
             this.MessageLog.Add(new TestLogEntry(message, null, 0, 0, false));
         }
 
+        /// <inheritdoc/>
+        public void LogMessage(string message, string fileName, int lineNumber, int linePosition)
+        {
+            this.MessageLog.Add(new TestLogEntry(message, fileName, lineNumber, linePosition, false));
+        }
+
         /// <inheritdoc/>
         public void LogWarning(string message)
         {

src/Microsoft.VisualStudio.Jdt/IJsonTransformationLogger.cs

@@ -16,6 +16,15 @@ public interface IJsonTransformationLogger
         /// <param name="message">The message text</param>
         void LogMessage(string message);
 
+        /// <summary>
+        /// Logs a message
+        /// </summary>
+        /// <param name="message">The message</param>
+        /// <param name="fileName">The full path to the file that caused the message. Can be null</param>
+        /// <param name="lineNumber">The line that caused the message</param>
+        /// <param name="linePosition">The position in the line that caused the message</param>
+        void LogMessage(string message, string fileName, int lineNumber, int linePosition);
+
         /// <summary>
         /// Logs a warning
         /// </summary>