Add token emulation support for asymmetric visibility modifiers

Avoid compatibilty token list in parser

Create the mapping using the entries in symbolToName, so we don't
need to repeat the compatibility tokens in another place.

[8.4] Add support for __PROPERTY__ magic constant

Part of property hooks RFC.

Assemble NodeDumper result in property

Append to a property instead of returning strings. This is
significantly faster when dumping large ASTs.

This also fixes an inconsistency

Assemble NodeDumper result in property

Append to a property instead of returning strings. This is
significantly faster when dumping large ASTs.

This also fixes an inconsistency where the indentation level for
strings and comments was off-by-one.

show more ...

Update phpstan baseline

Fix PhpStan errors

Declare list types (#907)

Closes #905

Use PhpStan level 6

New baseline errors are array types that I prefer to leave alone,
as well as one PhpStan bug:
https://github.com/phpstan/phpstan/issues/4526

Use PHPStan level 5

Add phpstan baseline