The guard against nested pointer chains searched every sublist for a
`*', including the ones that hold a type of their own.
A function type with a pointer parameter, while the same type with an int
parameter passed. (* [char 4]) was let through as well and came out
as `vector-ref char 4 * p'.
A `*' inside an array or a function type belongs to that type, so the
search stops there. What the flat conversion cannot express is now
named: a fn type is a function pointer already, and a pointer to an
array is not supported.
Parameters of a function type are walked without their names. C writes
a parameter name into a declarator and a type has none, so fmt-c prints
whatever it is handed there as a type: `(s (* char))' came out as
`char(*) s'.
fmt-c printed a nameless array declarator's #f into the C, which showed
up in these parameters.
Implement pub support for enums, and also anonymous enums declared
in-place.
Also give the cdr of a `pub' form the form's own location, so a
error about what follows `pub' can say where it was written
For source-level debug. Add --line-directives option, defaulted to
statement. Disabled when used with -C. Explicit non-none value
overrides disabling when -C is present
Prior to the fix, the Sex code
`(while (!= EOF (= c (getc f))) ...)` expanded wrongly to
`while (EOF != c = getc(f)) { ...`, instead of
`while (EOF != (c = getc(f))) { ...`
Also rename macros to sex-macros, module-system to sex-modules for
clarity, uniformity, and to avoid name clashes with Chicken's
units/modules named "macros" and "modules"
