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 += optimization

optimization_PRIVATE_FCN_FILES = \
  optimization/private/__fdjac__.m

optimization_FCN_FILES = \
  optimization/__all_opts__.m \
  optimization/fminbnd.m \
  optimization/fminsearch.m \
  optimization/fminunc.m \
  optimization/fsolve.m \
  optimization/fzero.m \
  optimization/glpk.m \
  optimization/lsqnonneg.m \
  optimization/optimget.m \
  optimization/optimset.m \
  optimization/pqpnonneg.m \
  optimization/qp.m \
  optimization/sqp.m \
  $(optimization_PRIVATE_FCN_FILES)

FCN_FILES += $(optimization_FCN_FILES)

PKG_ADD_FILES += optimization/PKG_ADD

DIRSTAMP_FILES += optimization/$(octave_dirstamp)