PHP 7.1: Support multi-catch

Catch::$type is now an array Catch::$types.

PHP 7.1: list() with keys

Expr\List will now contain ArrayItems instead of plain variables.
I'm reusing ArrayItem, because code handling list() must also handle
arrays, and this allo

PHP 7.1: list() with keys

Expr\List will now contain ArrayItems instead of plain variables.
I'm reusing ArrayItem, because code handling list() must also handle
arrays, and this allows both to go through the same code path.

This also renames Expr\List->vars to ->items.

TODO: Should Expr\List be dropped in favor of Expr\Array with an
extra flag?

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PHP 7: Short destructuring syntax

Potentially the pretty printer should force use of [] in assignment
context, instead of relying on the existance of the right attribute.

PHP 7: Support nullable types

Using a new NullableType node.

PHP 7.1: Class constant visibility support

PHP 7.1: Add void+iterable support

In PHP 7 mode, these will now be represented as strings 'void'
and 'iterable'.

Improve error recovery quality

In particular, support recovering from a missing trailing semicolon,
while keeping the rest of the expression.

Switch Exit kind attribute to flag

To be consistent with everything else.

Add string kinds and doc string labels

Scalar\String_ and Scalar\Encapsed now have an additional "kind"
attribute, which may be one of:

* String_::KIND_SINGLE_QUOTED
* Str

Add string kinds and doc string labels

Scalar\String_ and Scalar\Encapsed now have an additional "kind"
attribute, which may be one of:

* String_::KIND_SINGLE_QUOTED
* String_::KIND_DOUBLE_QUOTED
* String_::KIND_NOWDOC
* String_::KIND_HEREDOC

Additionally, if the string kind is one of the latter two, an
attribute "docLabel" is provided, which contains the doc string
label (STR in <<<STR) that was originally used.

The pretty printer will try to take the original kind of the string,
as well as the used doc string label into account.

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Fix nop statement comment assignment

Keep around the start attributes on the lookahead token around in
a separate parser property.

Move "kind" attribute handling out of lexer

Doesn't belong there and will cause issue with multiple assignments.

Add kind attribute for arrays

To distinguish array() and [] syntax. The pretty printer respects
this attribute. The shortArraySyntax pretty printer option acts as
a default in case t

Add kind attribute for arrays

To distinguish array() and [] syntax. The pretty printer respects
this attribute. The shortArraySyntax pretty printer option acts as
a default in case the attribute is not specified.

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Introduce Nop statement to collect dangling comments

A Nop statement will be inserted into statement lists if there are
any trailing comments in the list (which would otherwise not be

Introduce Nop statement to collect dangling comments

A Nop statement will be inserted into statement lists if there are
any trailing comments in the list (which would otherwise not be
associated with any node).

The pretty printer output currently still contains a superfluous
newline.

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Update semi-reserved keyword list

Magic constant names have been added after the PHP 7 release.

We do not support and likely will not support __halt_compiler here
due to lexer l

Update semi-reserved keyword list

Magic constant names have been added after the PHP 7 release.

We do not support and likely will not support __halt_compiler here
due to lexer limitations.

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Distinguish declare(); and declare(){}

It makes semantic difference and the latter form is actually
forbidden for strict_types.

This sets Declare->stmts to null for the body-les

Distinguish declare(); and declare(){}

It makes semantic difference and the latter form is actually
forbidden for strict_types.

This sets Declare->stmts to null for the body-less case.

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Introduce Scalar\EncapsedStringPart

Update group use support

To conform with current PHP 7 implementation

* Allow use \Foo\{Bar};
* Disallow use Foo\{\Bar};
* Disallow missing trailing semicolon (that was a bu

Update group use support

To conform with current PHP 7 implementation

* Allow use \Foo\{Bar};
* Disallow use Foo\{\Bar};
* Disallow missing trailing semicolon (that was a bug)

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Add support for unicode escape sequences

Only parsed if the PHP 7 parser is used.

Support scalar type declarations

Move token constants into separate class

As these are shared between Php5 and Php7 parsers they should be
in some common place, otherwise we'd have to always reference either
one or

Move token constants into separate class

As these are shared between Php5 and Php7 parsers they should be
in some common place, otherwise we'd have to always reference either
one or the other.

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Implement generalized yield operator

And split tokens.y off, so I don't waste time debugging this again...

Import some UVS tests

Implement UVS

Test PHP 5 and PHP 7 parsers

At this point they should return the same result.

Fork separate PHP 7 parser

Also add ParserInterface