Leftover from before ErrorHandler was introduced.

RFC: https://wiki.php.net/rfc/list_reference_assignment

RFC: https://wiki.php.net/rfc/trailing-comma-function-calls

Conflicts:
	CHANGELOG.md
	lib/PhpParser/NodeAbstract.php

Also document NodeFinder.

For better PHP-Scoper compatibility

Also mentioned php-parse here.

Also add -j flag to php-parse script to get a JSON dump. Also
drop obsolete flag for XML dumping.

Conflicts:
	lib/PhpParser/Parser/Php5.php
	lib/PhpParser/Parser/Php7.php

Fixes #469.

Mention non-fluent helper methods.

Split into evaluateDirectly() and evaluateSilently(), to be able
to treat errors more gracefully. Add documentation for constant
evaluation.

Conflicts:
	CHANGELOG.md

Conflicts:
	lib/PhpParser/PrettyPrinter/Standard.php

Fixes #459.