Support not null lazy value with default on reentry

core/util.runtime/src/org/jetbrains/jet/storage/NotNullLazyValueWithDefault.java

@@ -0,0 +1,16 @@
+package org.jetbrains.jet.storage;
+
+import org.jetbrains.annotations.NotNull;
+
+public abstract class NotNullLazyValueWithDefault<T> extends NotNullLazyValueImpl<T> {
+    private final T defaultValue;
+
+    protected NotNullLazyValueWithDefault(@NotNull T defaultValue) {
+        this.defaultValue = defaultValue;
+    }
+
+    @Override
+    public Object recursionDetected() {
+        return defaultValue;
+    }
+}