Marc Chevrier authored Feb 01, 2018 and Brad King committed Feb 02, 2018

Fix logic added by commit 2ee10119 (swig: fix incremental build in
case of removed interface files, 2017-11-06).  Name the extra targets
added for Makefile generators using both the module name and .i base
name to avoid collisions across modules.  Also make sure the extra
targets added for all .i files in a module are added as dependencies
instead of just the last one.

Fixes: #17704