Add else entry for when quick fix

compiler/frontend/src/org/jetbrains/jet/lang/psi/JetPsiFactory.java

@@ -21,6 +21,7 @@ import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Pair;
 import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiFileFactory;
+import com.intellij.psi.util.PsiTreeUtil;
 import com.intellij.util.LocalTimeCounter;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -82,6 +83,10 @@ public class JetPsiFactory {
         return property.findElementAt(3);
     }
 
+    public static PsiElement createNewLineWhiteSpace(Project project) {
+        return createWhiteSpace(project, "\n");
+    }
+
     public static JetClass createClass(Project project, String text) {
         return createDeclaration(project, text, JetClass.class);
     }
@@ -147,6 +152,11 @@ public class JetPsiFactory {
         return function.getValueParameters().get(0);
     }
 
+    public static JetWhenEntry createElseWhenEntry(Project project) {
+        JetNamedFunction function = createFunction(project, "fun foo() { when(12) { else -> { } } }");
+        return PsiTreeUtil.findChildOfType(function, JetWhenEntry.class);
+    }
+
     @NotNull
     public static JetImportDirective createImportDirective(Project project, @NotNull String path) {
         return createImportDirective(project, new ImportPath(path));

compiler/frontend/src/org/jetbrains/jet/lang/psi/JetWhenExpression.java

@@ -57,4 +57,10 @@ public class JetWhenExpression extends JetExpressionImpl {
     public PsiElement getWhenKeywordElement() {
         return findChildByType(JetTokens.WHEN_KEYWORD);
     }
+
+    @Nullable
+    public PsiElement getCloseBraceNode() {
+        ASTNode openBraceNode = getNode().findChildByType(JetTokens.RBRACE);
+        return openBraceNode != null ? openBraceNode.getPsi() : null;
+    }
 }