code: function validateLiteral( node ) {
  		var token = context.getTokens( node )[ 0 ];
  		if (
  			token.type === 'RegularExpression' &&
  			!safe( token.value )
  		) {
  			context.report( node, 'Unsafe regular expression' );
  		}
  	}
docs: FUNCTION: validateLiteral( node )
  Validates a regular expression literal.
  
  @param {Node} node - AST node
  @returns {Void}