[lldb] [ObjectFile/ELF] Fix negated seg ids on 32-bit arches
Scale segment identifier up to user_id_t before negating it. This fixes
the identifers being wrongly e.g. 0x00000000fffffffe instead of
0xfffffffffffffffe. Fix suggested by Pavel Labath.
This fixes 5 tests failing on i386 (PR #44748):
lldb-shell :: ObjectFile/ELF/PT_LOAD-overlap-PT_INTERP.yaml lldb-shell :: ObjectFile/ELF/PT_LOAD-overlap-PT_TLS.yaml lldb-shell :: ObjectFile/ELF/PT_LOAD-overlap-section.yaml lldb-shell :: ObjectFile/ELF/PT_LOAD.yaml lldb-shell :: ObjectFile/ELF/PT_TLS-overlap-PT_LOAD.yaml
Differential Revision: https://reviews.llvm.org/D73914