ios_framework does not have modulemap generated

Expected behavior
When I build an ios_framework, the output should contain a modulemap, just the way as the ios_static_framework does.

Actual behavior
The build framework does not have a module map.

I've tried to build using --experimental_objc_enable_module_maps with no success.

The issue names no files or tests. Start by reproducing an ios_framework build and compare its output with ios_static_framework, including a run with --experimental_objc_enable_module_maps. Done means the ios_framework output contains a modulemap.

Written by the indexing model from the issue text.