Refactor - WarningScope doesn't need to be in its own file

Following review see : #2654 (comment)

pylint/utils/__init__.py

@@ -60,6 +60,7 @@
 from pylint.utils.pylint_ast_walker import PyLintASTWalker
 from pylint.utils.reports_handler_mix_in import ReportsHandlerMixIn
 from pylint.utils.utils import (
+    WarningScope,
     _basename_in_blacklist_re,
     _check_csv,
     _format_option_value,
@@ -77,4 +78,3 @@
     safe_decode,
     tokenize_module,
 )
-from pylint.utils.warning_scope import WarningScope

pylint/utils/file_state.py

@@ -6,8 +6,9 @@
 import collections
 
 from astroid import nodes
-from pylint.utils.constants import MSG_STATE_SCOPE_MODULE
-from pylint.utils.warning_scope import WarningScope
+
+from pylint.utils import MSG_STATE_SCOPE_MODULE
+from pylint.utils.utils import WarningScope
 
 
 class FileState:

pylint/utils/utils.py

@@ -14,11 +14,16 @@
 from os.path import basename, dirname, exists, isdir, join, normpath, splitext
 
 from astroid import Module, modutils
+
 from pylint.interfaces import IRawChecker, ITokenChecker, implements
 from pylint.utils.constants import MSG_TYPES, MSG_TYPES_LONG, PY_EXTS
 from pylint.utils.message_definition import MessageDefinition
 from pylint.utils.normalize_text import normalize_text
-from pylint.utils.warning_scope import WarningScope
+
+
+class WarningScope:
+    LINE = "line-based-msg"
+    NODE = "node-based-msg"
 
 
 def get_module_and_frameid(node):