### SUMMARY

Update validate-modules to report messages using named error codes like `version-added` instead of error numbers like `E305`.

This would match the behavior of other tools we use, such as pylint, which have one named error code per rule. This will also make ignore entries much easier to read.

Doing this before 2.9 is released will avoid potential backwards compatibility issues with ignore entries in collections.

##### ISSUE TYPE

Feature Idea

##### COMPONENT NAME

validate-modules

msg=msg
                        )
                elif data['type'] != doc_type:
                    msg = "Argument '%s' in argument_spec" % arg
                    if context:
                        msg += " found in %s" % " -> ".join(context)
                    msg += " defines type as %r but documentation defines type as %r" % (data['type'], doc_type)
                    self.reporter.error(
                        path=self.object_path,
                        code=325,
                        msg=msg
                    )
            else:
                if doc_type is None:
                    msg = "Argument '%s' in argument_spec" % arg
                    if context:
                        msg += " found in %s" % " -> ".join(context)
                    msg += " uses default type ('str') but documentation doesn't define type"
                    self.reporter.error(
                        path=self.object_path,
                        code=338,
                        msg=msg
                    )
                elif doc_type != 'str':
                    msg = "Argument '%s' in argument_spec" % arg
                    if context:
                        msg += " found in %s" % " -> ".join(context)
                    msg += "implies type as 'str' but documentation defines as %r" % doc_type
                    self.reporter.error(
                        path=self.object_path,