import com.intellij.openapi.util.Ref;
import com.intellij.openapi.util.Comparing;
import com.intellij.psi.*;
import com.intellij.psi.search.PsiElementProcessor;
import com.intellij.psi.tree.IElementType;
<BUG>import com.intellij.psi.util.TypeConversionUtil;
import com.intellij.util.IncorrectOperationException;</BUG>
import com.intellij.pom.java.LanguageLevel;
import java.util.ArrayList;
import java.util.HashSet;

import com.intellij.openapi.util.Ref;
import com.intellij.openapi.util.Comparing;
import com.intellij.psi.*;
import com.intellij.psi.search.PsiElementProcessor;
import com.intellij.psi.tree.IElementType;
import com.intellij.psi.util.TypeConversionUtil;
import com.intellij.psi.util.PsiUtil;
import com.intellij.util.IncorrectOperationException;
import com.intellij.pom.java.LanguageLevel;
import java.util.ArrayList;
import java.util.HashSet;
