Merge pull request #1454 from kk-ds-000/perf/dont-generate-unneeded-string

Avoid unnecessary string allocation when calculating length

Author: lsegal

lib/yard/registry_resolver.rb

@@ -132,7 +132,8 @@ def lookup_path_inherited(namespace, path, type)
 
       path.scan(split_on_separators_match).each do |part, sep|
         cur_obj = nil
-        pos += "#{part}#{sep}".length
+        pos += part.length
+        pos += sep.length
         parsed_end = pos == path.length
 
         if !last_obj || (!parsed_end && !last_obj.is_a?(CodeObjects::NamespaceObject))