In API tests, replace use of the `p` alias with the `expression` command.
To avoid conflating tests of the alias with tests of the expression command,
this patch canonicalizes to the use `expression`.
Differential Revision: https://reviews.llvm.org/D141539
SectionLoadList has a section-to-address map (m_sect_to_addr) and
an address-to-section map (m_addr_to_sect). When the load address
of a section is updated, the old entry from m_addr_to_sect would
never be cleared, resulting in incorrect address-to-section address
lookups from that point forward.
Differential Revision: https://reviews.llvm.org/D130534
rdar://97308773