My previous attempt at fixing this was incorrect. The problem occurs
earlier in that _cpp_lex_direct processes the unwinding EOF needs in
collect_args mode. This patch changes it not to do that, in the same
way as directive parsing works. Also collect_args shouldn't push_back
such fake EOFs, and neither should funlike_invocation_p.
libcpp/
* lex.c (_cpp_lex_direct): Do not complete EOF processing when
parsing_args.
* macro.c (collect_args): Do not unwind fake EOF.
(funlike_invocation_p): Do not unwind fake EOF.
(cpp_context): Replace abort with gcc_assert.
gcc/testsuite/
* gcc.dg/cpp/endif.c: Move to ...
* c-c++-common/cpp/endif.c: ... here.
* gcc.dg/cpp/endif.h: Move to ...
* c-c++-common/cpp/endif.h: ... here.
* c-c++-common/cpp/eof-2.c: Adjust diagnostic.
* c-c++-common/cpp/eof-3.c: Adjust diagnostic.
dbcc6b1577