Enable constant check rule

cs278 · ondrejmirtes · commit 4d189033a04a · 2020-01-12T17:25:40.000+01:00
diff --git a/rules.neon b/rules.neon
@@ -9,6 +9,7 @@ rules:
 	- PHPStan\Rules\Deprecations\CallToDeprecatedMethodRule
 	- PHPStan\Rules\Deprecations\CallToDeprecatedStaticMethodRule
 	- PHPStan\Rules\Deprecations\FetchingClassConstOfDeprecatedClassRule
+	- PHPStan\Rules\Deprecations\FetchingDeprecatedConstRule
 	- PHPStan\Rules\Deprecations\ImplementationOfDeprecatedInterfaceRule
 	- PHPStan\Rules\Deprecations\InheritanceOfDeprecatedClassRule
 	- PHPStan\Rules\Deprecations\InheritanceOfDeprecatedInterfaceRule
