Same generics won't match depending on the field type

[nickkadutskyi]

Bug report

Here is playground that won't work: https://phpstan.org/r/cf4cbe40-30fa-4a96-98f4-6a7a39a6fa8e
And here is a similar playground that does work: https://phpstan.org/r/2d72088d-e2bc-4e37-8970-4869e49db476

The difference in the template definition for a generic type:
If I do this:

    /**
	 * @param I2<array{
	 *    b: array<string>|false|null, 
	 *    c: string|false|null
	 *  }> $a2
	 */

It doesn't work but if I remove b field or remove array from it it does work:

    /**
     * @param I2<array{
	 *    c: string|false|null
	 *  }> $a2
	 */

    /**
     * @param I2<array{
     *    b: false|null, 
	 *    c: string|false|null
	 *  }> $a2
	 */

Code snippet that reproduces the problem

https://phpstan.org/r/cf4cbe40-30fa-4a96-98f4-6a7a39a6fa8e

Expected output

There should be no issues as in this similar example:
https://phpstan.org/r/2d72088d-e2bc-4e37-8970-4869e49db476

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