/**
  * This method parses a shift right expression node.
  *
  * @return \PDepend\Source\AST\ASTShiftRightExpression
  * @since  1.0.1
  */
 protected function parseShiftRightExpression()
 {
     $token = $this->consumeToken(Tokens::T_SR);
     $expr = $this->builder->buildAstShiftRightExpression();
     $expr->configureLinesAndColumns($token->startLine, $token->endLine, $token->startColumn, $token->endColumn);
     return $expr;
 }