IDL: Rename InterfacesInfoModules -> InterfacesInfoOverall

This is a follow-up CL of https://codereview.chromium.org/680193003/

Review URL: https://codereview.chromium.org/692013002

git-svn-id: svn://svn.chromium.org/blink/trunk@184722 bbb929c8-8fbe-4397-9dbb-9b2b20218538