Refer to ::Symbol instead of Lrama::Symbol

Author: akouryy

sig/lrama/report.rbs

@@ -9,7 +9,7 @@ module Lrama
 
       def self.enable: -> void
       def self.enabled?: -> bool
-      def report_duration: [T] (Symbol method_name) { -> T } -> T
+      def report_duration: [T] (::Symbol method_name) { -> T } -> T
     end
   end
 end