Add ObjectShapeNode to support @var object{foo: string} $foo

[samsonasik]

The issue originally on :

• RemoveNonExistingVarAnnotationRector removes useful comments rectorphp/rector#7393

which has failing test at:

• Test for 7393 rectorphp/rector-src#2797

which the VarTagValueNode got empty variable name and the variable goes to description:

PHPStan\PhpDocParser\Ast\PhpDoc\VarTagValueNode #17240
   type: PHPStan\PhpDocParser\Ast\Type\IdentifierTypeNode #17247
   |  name: 'object'
   |  attributes: array (2)
   |  |  'parent' => PHPStan\PhpDocParser\Ast\PhpDoc\VarTagValueNode #17470 see below
   |  |  'orig_node' => PHPStan\PhpDocParser\Ast\Type\IdentifierTypeNode #17249
   |  |  |  name: 'object'
   |  |  |  attributes: array (1)
   |  |  |  |  'parent' => PHPStan\PhpDocParser\Ast\PhpDoc\VarTagValueNode #17470 see below
   variableName: ''
   description: '{foo: string} $foo'

This PR try to add support for @var object{foo: string} $foo usage. In PHPStan demo site itself, it detected as property $foo not exists:

https://phpstan.org/r/47583831-d7ae-43b8-bae9-bfabead3459b

while it actually exists https://3v4l.org/Vo8FA

[samsonasik]

I just realized there is already PR #141 for it, so closing it then.

[mad-briller]

@samsonasik feel free to pick up where i left off on #141, i'm not going to have a lot of time to work on OSS for a while unfortunately.

[TomasVotruba]

@mad-briller Thanks for the test fixture 👍

I've added a workaround for time being, untill it get's added to php-doc parser :)
rectorphp/rector-src#2837