Add token emulation support for asymmetric visibility modifiers

[8.4] Add support for __PROPERTY__ magic constant

Part of property hooks RFC.

Remove superfluous phpdoc tags

These just specify a type that is already specified as a real PHP
type.

Drop Lexer::getTokens() method

This doesn't make a lot of sense now that Lexer::tokenize() returns
the tokens.

The tokens for the last parse should be fetched via
Parser::ge

Drop Lexer::getTokens() method

This doesn't make a lot of sense now that Lexer::tokenize() returns
the tokens.

The tokens for the last parse should be fetched via
Parser::getTokens() instead.

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Add property types

Types omitted in two places where we violate them currently:
Namespace_::$stmts can be null during parsing, and Enum_::$scalarType
can be a complex type for invali

Add property types

Types omitted in two places where we violate them currently:
Namespace_::$stmts can be null during parsing, and Enum_::$scalarType
can be a complex type for invalid programs.

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Remove emulation for unsupported PHP versions

Replace startLexing() with tokenize()

For now Lexer::getTokens() still exists, but should probably be
removed.

Fixup line numbers when applying emulator patches

This fixes the test failures on PHP 7.2.

Move attribute handling into parser

The Lexer now only provides the tokens to the parser, while the
parser is responsible for determining which attributes are placed
on notes. This o

Move attribute handling into parser

The Lexer now only provides the tokens to the parser, while the
parser is responsible for determining which attributes are placed
on notes. This only needs to be done when the attributes are
actually needed, rather than for all tokens.

This removes the usedAttributes lexer option (and lexer options
entirely). The attributes are now enabled unconditionally. They
have less overhead now, and the need to explicitly enable them for
some use cases (e.g. formatting-preserving printing) doesn't seem
like a good tradeoff anymore.

There are some additional changes to the Lexer interface that
should be done after this, and the docs / upgrading guide haven't
been adjusted yet.

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Fix emulative lexer with default error handler

If no error handler is provided, explicitly create one, so we don't
end up calling handleError() on null.

Declare list types (#907)

Closes #905

Support readonly before DNF type

This makes us match the PHP 8.2 handling of readonly. Handling of
"readonly" functions is moved to the parser to allow distinguishing
them from reado

Support readonly before DNF type

This makes us match the PHP 8.2 handling of readonly. Handling of
"readonly" functions is moved to the parser to allow distinguishing
them from readonly properties with DNF types. We have to uglify the
grammar to avoid some shift/reduce conflicts. Thank you WordPress.

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Specify more types

Add missing return types

Add php-cs-fixer config and reformat

The formatting in this project has become something of a mess,
because it changed over time. Add a CS fixer config and reformat
to the desired st

Add php-cs-fixer config and reformat

The formatting in this project has become something of a mess,
because it changed over time. Add a CS fixer config and reformat
to the desired style, which is PSR-12, but with sane brace placement.

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Add PhpVersion class

Add visibility modifiers to constants

Closes GH-848.

Nullable type declaration for default null value

Adds ? before type declarations for parameters with a default null value

Perform token position adjustment during emulator patching

Use PHP 8.0 token representation

Migrate everything to use PhpToken-compatible token representation,
rather than the legacy array/string representation.

Fix minor typo

Add support for explicit octal literals

Add support for new PHP 8.1 modifiers (#796)

Implement support for readonly properties (https://wiki.php.net/rfc/readonly_properties_v2) and
final class contstants (https://wiki.php.net/

Add support for new PHP 8.1 modifiers (#796)

Implement support for readonly properties (https://wiki.php.net/rfc/readonly_properties_v2) and
final class contstants (https://wiki.php.net/rfc/final_class_const).

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Add emulation for enum keyword

Emulate PHP 8 attribute syntax

Perform emulation by replacing #[ with %[, then patching % back
to # and coalescing #[ into T_ATTRIBUTE if it is a freestanding
token.