fhdl.ast: fix Switch._?hs_signals() for switch without statements.
-rw-r--r-- 94 .coveragerc
-rw-r--r-- 46 .gitignore
-rw-r--r-- 7347 README.md
drwxr-xr-x - examples
drwxr-xr-x - nmigen
-rw-r--r-- 350 setup.py