Sort overridden methods in parent-defined order

[erickskrauch]

During the review, I encountered that the developer added the implementation of new methods to the end of the class, while in the interface these methods were described above. I remarked and asked to fix it for code consistency, but I realized that this is a stylistic remark, which means that it either shouldn't be made at all or should be implemented as an automatic tool.

Example

Before fix:

interface Basic {

    public function firstMethod();

    public function secondMethod();

    public function thirdMethod();

}

final class BasicImplementation implements Basic {

    public function firstMethod() {
        // Code
    }

    public function thirdMethod() { // Out of order!
        // Code
    }

    public function secondMethod() {
        // Code
    }

}

After fix:

final class BasicImplementation implements Basic {

    public function firstMethod() {
        // Code
    }

    public function secondMethod() {
        // Code
    }

    public function thirdMethod() { // Now on its place
        // Code
    }

}

Notes:

• The implementation should work correctly with php-doc and attributes.
• The fixer must run before ordered_class_elements.
• The fixer should work for interfaces, extended interfaces, abstract classes, and non-final classes.