dbghelp: When handling a P augmentation in FDE/DIE parsing, throw away the DW_EH_indirect flag, as we don't handle the result.

It's needed as long as we don't support DW_EH_indirect while reading encoded values.

Implement dwarf stack unwinding for i386 CPU.

We should never call the handler for states that have a rep.

This is not yet generalized to "pause all" or "stop all".