find symbols in proper scope when debugging (bug #40397) * lex.h (lexical_feedback::symbol_table_context::init_scope): Delete member variable and all uses. (lexical_feedback::symbol_table_context::pop): Assert that the context is not empty before popping. (lexical_feedback::symbol_table_context::push): Use default argument. (lexical_feedback::symbol_table_context::curr_scope): If empty, return symbol_table::current_scope, not the initial scope in effect when the object is created. * oct-parse.in.yy (octave_base_parser::make_anon_fcn_handle, octave_base_parser::recover_from_parsing_function): Don't check for empty lexer.symtab_context here.

FCN_FILE_DIRS += specfun

specfun_FCN_FILES = \
  specfun/bessel.m \
  specfun/beta.m \
  specfun/betaln.m \
  specfun/ellipke.m \
  specfun/expint.m \
  specfun/factor.m \
  specfun/factorial.m \
  specfun/isprime.m \
  specfun/lcm.m \
  specfun/legendre.m \
  specfun/nchoosek.m \
  specfun/nthroot.m \
  specfun/perms.m \
  specfun/pow2.m \
  specfun/primes.m \
  specfun/reallog.m \
  specfun/realpow.m \
  specfun/realsqrt.m

FCN_FILES += $(specfun_FCN_FILES)

PKG_ADD_FILES += specfun/PKG_ADD

DIRSTAMP_FILES += specfun/$(octave_dirstamp)