Build view: reuse event description field for the message details

java/compiler/impl/src/com/intellij/build/BuildTreeConsoleView.java

@@ -446,12 +446,6 @@ public class BuildTreeConsoleView implements ConsoleView, DataProvider, BuildCon
         public MessageEvent.Kind getKind() {
           return eventKind;
         }
-
-        @Override
-        @Nullable
-        public String getDetails() {
-          return null;
-        }
       });
     }
     if (messageEvent instanceof FileMessageEvent) {

java/compiler/impl/src/com/intellij/build/events/impl/FileMessageEventImpl.java

@@ -18,7 +18,6 @@ import java.util.Objects;
 public class FileMessageEventImpl extends MessageEventImpl implements FileMessageEvent {
 
   private final FilePosition myFilePosition;
-  private final String myDetailedMessage;
 
   public FileMessageEventImpl(@NotNull Object parentId,
                               @NotNull Kind kind,
@@ -28,7 +27,6 @@ public class FileMessageEventImpl extends MessageEventImpl implements FileMessag
                               @NotNull FilePosition filePosition) {
     super(parentId, kind, group, message, detailedMessage);
     myFilePosition = filePosition;
-    myDetailedMessage = detailedMessage;
   }
 
   @Override
@@ -47,7 +45,7 @@ public class FileMessageEventImpl extends MessageEventImpl implements FileMessag
       @Override
       @Nullable
       public String getDetails() {
-        return myDetailedMessage;
+        return getDescription();
       }
     };
   }

java/compiler/impl/src/com/intellij/build/events/impl/MessageEventImpl.java

@@ -17,13 +17,17 @@ public class MessageEventImpl extends AbstractBuildEvent implements MessageEvent
 
   @NotNull private final Kind myKind;
   @NotNull private final String myGroup;
-  @Nullable private final String myDetailedMessage;
 
   public MessageEventImpl(@NotNull Object parentId, @NotNull Kind kind, @Nullable String group, @NotNull String message, @Nullable String detailedMessage) {
     super(new Object(), parentId, System.currentTimeMillis(), message);
     myKind = kind;
     myGroup = group == null ? "Other messages" : group;
-    myDetailedMessage = detailedMessage;
+    setDescription(detailedMessage);
+  }
+
+  @Override
+  public final void setDescription(@Nullable String description) {
+    super.setDescription(description);
   }
 
   @NotNull
@@ -54,7 +58,7 @@ public class MessageEventImpl extends AbstractBuildEvent implements MessageEvent
 
       @Override
       public String getDetails() {
-        return myDetailedMessage;
+        return getDescription();
       }
     };
   }