Order in processing of ASTNode in KdocComments

[nulls]

The problem is not in ordering:

1. We check KDoc when process CLASS
2. We fix the KDoc when process VAL_KEYWORD or VAR_KEYWORD inside.

We can move checking KDoc on CLASS level after processing the childs. But probably the fixing of KDoc for class should be done on class level

Originally posted by @nulls in https://github.com/saveourtool/diktat/pull/1769#discussion_r1381538024

[nulls]

Relates to #1538