[DynInst_API:] [dyninst/dyninst] 53cfc3: Fix uninitialized member variables

[Tim Haines <noreply@xxxxxxxxxx>]

  Branch: refs/heads/fix_uninit_member_var
  Home:   https://github.com/dyninst/dyninst
  Commit: 53cfc312c1efbbff57835aed4b55c2837d7c28ac
      https://github.com/dyninst/dyninst/commit/53cfc312c1efbbff57835aed4b55c2837d7c28ac
  Author: Tim Haines <thaines.astro@xxxxxxxxx>
  Date:   2023-05-10 (Wed, 10 May 2023)

  Changed paths:
    M common/h/IBSTree.h
    M dataflowAPI/rose/SgAsmExpression.h
    M dataflowAPI/rose/SgAsmPowerpcInstruction.h
    M dataflowAPI/rose/util/PoolAllocator.h
    M dwarf/h/dwarfResult.h
    M dynC_API/h/snippetGen.h
    M dyninstAPI/h/BPatch_type.h
    M dyninstAPI/h/StackMod.h
    M dyninstAPI/src/Relocation/Widgets/RelDataWidget.h
    M dyninstAPI/src/StackMod/StackLocation.h
    M dyninstAPI/src/ast.h
    M dyninstAPI/src/image.h
    M dyninstAPI/src/inst-x86.h
    M dyninstAPI/src/mapped_object.h
    M dyninstAPI/src/registerSpace.h
    M dyninstAPI/src/syscallNotification.h
    M elf/h/Elf_X.h
    M instructionAPI/h/Ternary.h
    M instructionAPI/src/InstructionDecoder-aarch64.h
    M parseAPI/src/BoundFactData.h
    M parseAPI/src/ParserDetails.h
    M parseAPI/src/ProbabilisticParser.h
    M patchAPI/h/AddrSpace.h
    M patchAPI/h/Point.h
    M symtabAPI/h/Symtab.h
    M symtabAPI/src/Object-nt.C
    M symtabAPI/src/emitElf.h

  Log Message:
  -----------
  Fix uninitialized member variables

These were detected by cppcheck's uninitMemberVar*.