tests: Add a couple of testcases for enum.  Not really much at the moment,
but will be used more in later commits.
titdn: Produce an error messages for junk like
f(): T == import from X
add fluidSave_ before fluidSave'd variables

Before, it added __, which is not compliant:

cstd 7.1.3 Reserved identifiers

- All identifiers that begin with an underscore and either an uppercase letter
  or another underscore are always reserved for any use.
tform.c: Small debug patch

Note when adding an export to list (this is to check for inlining
information)
lib.c: Small change to -WD+libConst debug
- display filename as part of GetSymes output.  Do not call
libSymeIsLocal, as it appears to have side effects.