The following methods of PHPUnit\Framework\Assert will be removed in PHPUnit 11:

• assertClassHasAttribute()
• assertClassNotHasAttribute()
• assertClassHasStaticAttribute()
• assertClassNotHasStaticAttribute()
• assertObjectHasAttribute()
• assertObjectNotHasAttribute()
• classHasAttribute()
• classHasStaticAttribute()
• objectHasAttribute()

The following classes will be removed in PHPUnit 11:

• PHPUnit\Framework\Constraint\ClassHasAttribute
• PHPUnit\Framework\Constraint\ClassHasStaticAttribute
• PHPUnit\Framework\Constraint\ObjectHasAttribute

This follows #4601.