[DynInst_API:] [dyninst/dyninst] 44d86e: Fix several resource leaks (#1435)

[Tim Haines <noreply@xxxxxxxxxx>]

  Branch: refs/heads/master
  Home:   https://github.com/dyninst/dyninst
  Commit: 44d86e56068f62b9ac03f7d7537098fd3728fcdb
      https://github.com/dyninst/dyninst/commit/44d86e56068f62b9ac03f7d7537098fd3728fcdb
  Author: Tim Haines <thaines.astro@xxxxxxxxx>
  Date:   2023-05-11 (Thu, 11 May 2023)

  Changed paths:
    M dyninstAPI/src/parse-power.C
    M dyninstAPI/src/unix.C
    M proccontrol/src/irpc.C
    M proccontrol/src/memcache.C
    M symtabAPI/src/Symtab-edit.C

  Log Message:
  -----------
  Fix several resource leaks (#1435)

* Local var leak in Symtab::addSymbol

This was found using cppcheck's memleak.

* memCache::doOperation

Not technically a leak, but cppcheck can't see through the 'push_back'.

* PCProcess::hasPassedMain

Found using cppcheck's danglingTemporaryLifetime.

* parse_func::calcParentFunc

Found using cppcheck's danglingTemporaryLifetime.

* int_iRPC::setBinarySize

Found using cppcheck's publicAllocationError.