Fix compatibility with T_BAD_CHARACTER in PHP 7.4

Fix harmless typos in documentation

Avoid notices in php 7.4 with hexdec/base_convert (#619)

This is made to avoid notices caused by
https://wiki.php.net/rfc/base_convert_improvements

(seen with `php -d error_repo

Avoid notices in php 7.4 with hexdec/base_convert (#619)

This is made to avoid notices caused by
https://wiki.php.net/rfc/base_convert_improvements

(seen with `php -d error_reporting=E_ALL vendor/bin/phpunit`)

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[PHP 7.4] Add support for numeric literal separators (#615)

Implements RFC https://wiki.php.net/rfc/numeric_literal_separator.

Closes #614.

Insert T_BAD_CHARACTER tokens for missing characters

The token stream should cover all characters in the original code,
insert a dummy token for missing illegal characters. We should

Insert T_BAD_CHARACTER tokens for missing characters

The token stream should cover all characters in the original code,
insert a dummy token for missing illegal characters. We should
really be doing this in token_get_all() as well.

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Fix one-character inconsistency

Only ignore-platform-reqs on nightly

Make compatible with PhpUnit 8

Remove token registration from TokenEmulator interface

Resolve return type of arrow functions (#613)

Release PHP-Parser 4.2.2

Revert "Recover from error inside alternative array deref syntax"

This reverts commit 9d44edf85dc5882e45fed37a6c541bf20e7c8495.

Optimize attribue checks in the lexer

Avoid parent constructor call during node construction

Instead explicitly assign the attributes. This is a minor
performance improvement.

Recover from error inside alternative array deref syntax

This is to improve error recovery for cases like #545.

Add changelog entries

FPPP: Support inserting into empty lists

Fix attributes for zero-length nop nodes

Previously zero-length nop nodes used the lookahead start attributes
and current end attributes. This choice ends up being somewhat weird,
be

Fix attributes for zero-length nop nodes

Previously zero-length nop nodes used the lookahead start attributes
and current end attributes. This choice ends up being somewhat weird,
because the end attributes will be the at the last non-whitespace,
non-comment token, which might be quite far back. More problematically,
we may not have encountered any non-discarded token if we're at the
start of the file, in which case we will have no end attributes to
assign.

Change things to use a canonical "zero-length" node representation,
where the end position (token & file) will be exactly one before the
start position.

Fixes #589.

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Remove bogus exprStmt mode test

We're always generating expression statements nowadays, this flag
hasn't existed for a long while now...

[PHP 7.4] Add array spread

[PHP 7.4] Add support for arrow functions (#602)

Per RFC https://wiki.php.net/rfc/arrow_functions_v2.

Print messages to stderr in bin/php-parse and fix exit status

Close #605.

Use --ignore-platform-reqs on Travis

Allows testing on nightly, which is PHP 8.

Release PHP-Parser 4.2.1

Add PHP 7.4 to Travis matrix