This should give C99-compatible behavior, as far as it goes. The functions aren't actually inlined, but that's just a quality-of-implementation issue. No C standard requires actual inlining.
Non-static inline functions are still not supported. The C99 semantics for them are more complicated, and they're less widely used, so they're a lower priority for now.
The "inline" function specifier can currently only come after the "static" storage class specifier. This relates to a broader issue where not all legal orderings of declaration specifiers are supported.
Since "inline" was already treated as a keyword in ORCA/C, this shouldn't create any extra compatibility issues for C89 code.
This is necessary to make the "compile" command halt and not process additional source files, as well as to make occ stop and not run the linker.
Previously, this was not happening when the #error directive was used, or when an undefined label was used in a goto.
This addressed the issue with the compco07.c test case.