private static boolean isRealExpression(GrExpression expression) {
        final PsiType type = expression.getType();

        if (PsiTypes.voidType().equals(type)) return false; //statement

        if (type == PsiTypes.nullType()) return !org.jetbrains.plugins.groovy.lang.psi.util.PsiUtil.isVoidMethodCall(expression);

        return true;
      }
private static boolean isRealExpression(GrExpression expression)