Made BytecodeToolwindow and ResolveToolwindow disposable: got rid of unreleased editor exception on closing IDEA.

#KT-733 fixed

idea/src/org/jetbrains/jet/plugin/internal/codewindow/BytecodeToolwindow.java

@@ -20,6 +20,7 @@
 package org.jetbrains.jet.plugin.internal.codewindow;
 
 import com.intellij.ide.highlighter.JavaFileType;
+import com.intellij.openapi.Disposable;
 import com.intellij.openapi.application.Result;
 import com.intellij.openapi.command.WriteCommandAction;
 import com.intellij.openapi.editor.Document;
@@ -52,7 +53,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Scanner;
 
-public class BytecodeToolwindow extends JPanel {
+public class BytecodeToolwindow extends JPanel implements Disposable {
     private static final int UPDATE_DELAY = 500;
     private static final String DEFAULT_TEXT = "/*\n" +
                                                "Generated bytecode for Kotlin source file.\n" +
@@ -223,6 +224,11 @@ public class BytecodeToolwindow extends JPanel {
         return answer.toString();
     }
 
+    @Override
+    public void dispose() {
+        EditorFactory.getInstance().releaseEditor(myEditor);
+    }
+
     public static class Location {
         final Editor editor;
         final long modificationStamp;

idea/src/org/jetbrains/jet/plugin/internal/resolvewindow/ResolveToolwindow.java

@@ -19,6 +19,7 @@
  */
 package org.jetbrains.jet.plugin.internal.resolvewindow;
 
+import com.intellij.openapi.Disposable;
 import com.intellij.openapi.application.Result;
 import com.intellij.openapi.command.WriteCommandAction;
 import com.intellij.openapi.editor.Editor;
@@ -62,7 +63,7 @@ import static org.jetbrains.jet.lang.resolve.calls.ResolutionDebugInfo.*;
 /*
  * @author abreslav
  */
-public class ResolveToolwindow extends JPanel {
+public class ResolveToolwindow extends JPanel implements Disposable {
 
     public static final String BAR = "\n\n===\n\n";
 
@@ -340,4 +341,9 @@ public class ResolveToolwindow extends JPanel {
             }
         }.execute();
     }
+
+    @Override
+    public void dispose() {
+        EditorFactory.getInstance().releaseEditor(myEditor);
+    }
 }