Make a real type for target_symbol->components

Now the dereferences on target_symbol and cast_op are tracked with a
struct instead of just a generic pair.  The first immediate benefit is
that we can track the token for more exact error reporting.

* staptree.h (target_symbol): Add a new component type.
* staptree.cxx (target_symbol::component::print): New.
  (operator<<(ostream&, target_symbol::component&): New.
  (target_symbol::print): Adapt component printing.
  (cast_op::print): Ditto.
* parse.cxx (parser::parse_target_symbol_components): Adapt to the new
  component construction.
* dwflpp.cxx (dwflpp::find_struct_member): take the component as a
  parameter for a better token in error messages
  (dwflpp::translate_components): Adapt to the new component type.
* tapsets.cxx (dwarf_var_expanding_visitor::visit_target_symbol): Don't
  overwrite the token in target_symbol saved errors.
  (tracepoint_var_expanding_visitor::visit_target_symbol_arg): Ditto.

0 files changed, 0 insertions, 0 deletions