[type-declaration-docblocks] Add AddParamArrayDocblockFromDimFetchAccessRector

[TomasVotruba]

This rules adds known @param docblock for keys used in method body 👍

 final class ParamArray
 { 
+    /**
+     * @param array<string, mixed> $data
+     */
     public function process(array $data): void
     {
         $item = $data['key'];

         $anotherItem = $data['another_key'];
     }
 }

[samsonasik]

It seems mostly got mixed value, which may be int or string, eg:

function foo(array $params, int $page, int $limit)
{
   $params['page'] = $page;
   $params['limit'] = $limit;
}

got:

+/**
+ * @param array<string, mixed> $params
+ */

which I think should possibly:

+/**
+ * @param array<string, int> $params
+ */

[TomasVotruba]

That doesn't have to be true, as $params can contains even string and other values.

[TomasVotruba]

Do you have some real-world file where this rule should be improved? More context would help

[samsonasik]

Yes, on our project 👍 , using blindly set to mixed will cause everything like mixed, while it on use is not.