Optimizing constructor and argument initialization

I propose to add an alternative syntax for a simplified notation of the constructor and its arguments.
For example:

use \Yiisoft\Definitions\ArrayDefinition;

$definition = ArrayDefinition::fromConfig([
    'class' => MyServiceInterface::class,
    '__construct()' => [42], 
    '$propertyName' => 'value',
    'setName()' => ['Alex'],
]);

So it can be written like this:

use \Yiisoft\Definitions\ArrayDefinition;

$definition = ArrayDefinition::fromConfig([
    MyServiceInterface::class,
    [42], 
    'propertyName' => 'value',
    'setName()' => ['Alex'],
]);

Here the unnamed first (0) parameter (string) is the name of the class.
The second unnamed (1) parameter (array, if present) is the constructor arguments.

Raise an error if unnamed parameters are present along with "__construct()" or "class".

Also, the '$' notation here may be redundant and looks like a developer error visually (lack of double quotes).

This improvement will simplify development and reduce the amount of code.

The issue names ArrayDefinition::fromConfig as the entry point; start there and inspect how class, constructor, property, and setter definitions are currently handled. Define and test the shorthand, including errors when unnamed parameters are mixed with "__construct()" or "class", and resolve whether the "$" property notation should remain.