UseSWIG: Name extra generated files after module name (#10080)

Modules/UseSWIG.cmake

@@ -85,9 +85,6 @@ macro(SWIG_GET_EXTRA_OUTPUT_FILES language outfiles generatedpath infile)
   set(${outfiles} "")
   get_source_file_property(SWIG_GET_EXTRA_OUTPUT_FILES_module_basename
     ${infile} SWIG_MODULE_NAME)
-  if(SWIG_GET_EXTRA_OUTPUT_FILES_module_basename STREQUAL "NOTFOUND")
-    get_filename_component(SWIG_GET_EXTRA_OUTPUT_FILES_module_basename "${infile}" NAME_WE)
-  endif()
   foreach(it ${SWIG_${language}_EXTRA_FILE_EXTENSION})
     set(${outfiles} ${${outfiles}}
       "${generatedpath}/${SWIG_GET_EXTRA_OUTPUT_FILES_module_basename}.${it}")
@@ -103,6 +100,10 @@ macro(SWIG_ADD_SOURCE_TO_MODULE name outfiles infile)
   get_source_file_property(swig_source_file_generated ${infile} GENERATED)
   get_source_file_property(swig_source_file_cplusplus ${infile} CPLUSPLUS)
   get_source_file_property(swig_source_file_flags ${infile} SWIG_FLAGS)
+  get_source_file_property(_SWIG_MODULE_NAME ${infile} SWIG_MODULE_NAME)
+  if ( NOT _SWIG_MODULE_NAME )
+    set_source_files_properties(${infile} PROPERTIES SWIG_MODULE_NAME ${name})
+  endif ()
   if("${swig_source_file_flags}" STREQUAL "NOTFOUND")
     set(swig_source_file_flags "")
   endif()