Corrects the spelling of 'IsGlobaLinkage' to 'IsGlobalLinkage' in
XCOFF-related code, comments, and tests across the codebase.

Corrects a typo in comments within XCOFFObjectFile.cpp, changing
'unit64_t' to the correct type 'uint64_t' for clarity.

## Purpose

This patch is one in a series of code-mods that annotate LLVM’s public
interface for export. This patch annotates the `llvm/ObjCopy` and
`llvm/Object` libraries. These annotations currently have no meaningful
impact on the LLVM build; however, they are a prerequisite to support an
LLVM Windows DLL (shared library) build.

## Background

This effort is tracked in #109483. Additional context is provided in
[this
discourse](https://discourse.llvm.org/t/psa-annotating-llvm-public-interface/85307),
and documentation for `LLVM_ABI` and related annotations is found in the
LLVM repo
[here](https://github.com/llvm/llvm-project/blob/main/llvm/docs/InterfaceExportAnnotations.rst).

The bulk of these changes were generated automatically using the
[Interface Definition Scanner (IDS)](https://github.com/compnerd/ids)
tool, followed formatting with `git clang-format`.

The following manual adjustments were also applied after running IDS on
Linux:
- Add `#include "llvm/Support/Compiler.h"` to files where it was not
auto-added by IDS due to no pre-existing block of include statements.
- Manually annotate template class `CommonArchiveMemberHeader` with
`LLVM_ABI` since IDS ignores templates and this is the simplest solution
for DLL-exporting its child classes because it has methods defined
out-of-line. Seems to be an uncommon situation.
- Explicitly make `Archive` class non-copyable due to the class-level
`LLVM_ABI` annotation.
- Add default constructor to `ELFFile` so it can be instantiated for
DLL-export as a base class.
- Add `LLVM_TEMPLATE_ABI` and `LLVM_EXPORT_TEMPLATE` to exported
instantiated templates.

## Validation

Local builds and tests to validate cross-platform compatibility. This
included llvm, clang, and lldb on the following configurations:

- Windows with MSVC
- Windows with Clang
- Linux with GCC
- Linux with Clang
- Darwin with Clang

This patch starts the initial implementation of JITLink for XCOFF (Object format for AIX).

ErrorAsOutParameter's Error* constructor supports cases where an Error might not
be passed in (because in the calling context it's known that this call won't
fail). Most clients always have an Error present however, and for them an Error&
overload is more convenient.

These symbols are implicitly imported from the LLVM shared library by
llvm-objdump on ELF like platforms, but for windows they need to be
explicitly exported when LLVM is built as shared library.
I also add visibility macros for XCOFFObjectFile::getExceptionEntries
that can't automatically be added by clang tooling since it doesn't
store the source locations for explicit function template
instantiations.

the patch enable file-headers option of llvm-objdump for XCOFF object
files

The section headers for XCOFF files have a subtype flag for Dwarf
sections. This PR updates obj2yaml, yaml2obj, and llvm-readobj so that
they recognize the subtype.

This will help tools like llvm-symbolizer recognizes more functions.