[cs] spaces

[cs] use PHP 5.4 short array, since PHP 7.0 is min version

Handle LC_NUMERIC with comma decimal separator

Closes #399.

Distinguish between implicit/explicit alias

The UseUse::$alias node can now be null if an alias is not
explicitly given. As such "use Foo\Bar" and "use Foo\Bar as Bar"
are now repres

Distinguish between implicit/explicit alias

The UseUse::$alias node can now be null if an alias is not
explicitly given. As such "use Foo\Bar" and "use Foo\Bar as Bar"
are now represented differently.

The UseUse->getAlias() method replicates the previous semantics,
by returning "Bar" in both cases.

show more ...

Always use Identifier nodes

The parser will now always generate Identifier nodes (for
non-namespaced identifiers). This obsoletes the useIdentifierNodes
parser option.

Node

Always use Identifier nodes

The parser will now always generate Identifier nodes (for
non-namespaced identifiers). This obsoletes the useIdentifierNodes
parser option.

Node constructors still accepts strings and will implicitly create
an Identifier wrapper. Identifier implement __toString(), so that
outside of strict-mode many things continue to work without changes.

show more ...

Pretty printer: Preserve comments in arrays and calls

If call arguments or array contains comments, print it in multiline
form, so that comments may be preserved.

Change one function to protected

Pretty print: Handle Error in ClassConstFetch

Throw if pretty-printing Error node

Don't include whitespace directly in catch/finally print

Renamve Param::$name to Param::$var

As it now contains a Variable node.

Rename StaticVar::$name to $var

As it now holds a Variable

Adjust code for constitent var mode

Add first shot at format preserving pretty printer

Improve LNumber/DNumber pretty printing

* Support PHP_INT_MIN
* Support negative binary/octal/hex numbers
* Support INF/-INF/NAN in namespaces

Fix pretty-printing of nullable types

Cleanup imports

Thanks PhpStorm :)

Add hasLeadingNewline attribute to InlineHTML

Use this attribute to not print an extra newline if the original
code did not have it.

Make PrettyPrinter\Standard methods protected

I'm not sure how these ever ended up being public.

Introduce explicit Finally node

Rename $type subnode to $flags

Type makes it sound like a type-hint, and on a number of other nodes
$type is used for exactly that. Use $flags to hold modifiers instead.

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?

show more ...

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.