2024.3 Build Failure with GCC 14

* Git revision `0cfe9e721`.
* GCC version 12.4.0. ("We only test against GCC 9." Yeah, I saw that, but GCC is at v14 now, which is even pickier than GCC 12, so you still might want to put a pin in this one.)

spirv-tools is compiled as part of Yocto's ["Quick Build"](https://docs.yoctoproject.org/brief-yoctoprojectqs/index.html) example (`MACHINE="genericx86_64"`). The build konks out trying to compile `source/val/function.cpp` with the following error:

```
/home/ewhac/devel/yoc-generic/poky/build/tmp/hosttools/g++ -DSPIRV_COLOR_TERMINAL -DSPIRV_LINUX -DSPIRV_TIMER_ENABLED -DSPIRV_Tools_EXPORTS -I/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/git -I/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/git/include -I/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/build -isystem/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/recipe-sysroot-native/usr/include -O2 -pipe -fvisibility-inlines-hidden -g -std=c++17 -fPIC -DSPIRV_CHECK_CONTEXT -fno-rtti -Wall -Wextra -Wnon-virtual-dtor -Wno-missing-field-initializers -Werror -Wno-long-long -Wshadow -Wundef -Wconversion -Wno-sign-conversion -fno-exceptions -MD -MT source/CMakeFiles/SPIRV-Tools.dir/val/function.cpp.o -MF source/CMakeFiles/SPIRV-Tools.dir/val/function.cpp.o.d -o source/CMakeFiles/SPIRV-Tools.dir/val/function.cpp.o -c /home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/git/source/val/function.cpp
In file included from /usr/include/c++/12/bits/hashtable_policy.h:35,
from /usr/include/c++/12/bits/hashtable.h:35,
from /usr/include/c++/12/unordered_map:46,
from /usr/include/c++/12/functional:61,
from /home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/git/source/val/function.h:18,
from /home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/git/source/val/function.cpp:15:
In static member function ‘static _Up* std::__copy_move<_IsMove, true, std::random_access_iterator_tag>::__copy_m(_Tp*, _Tp*, _Up*) [with _Tp = spvtools::val::BasicBlock* const; _Up = spvtools::val::BasicBlock*; bool _IsMove = false]’,
inlined from ‘_OI std::__copy_move_a2(_II, _II, _OI) [with bool _IsMove = false; _II = spvtools::val::BasicBlock* const*; _OI = spvtools::val::BasicBlock**]’ at /usr/include/c++/12/bits/stl_algobase.h:501:30,
inlined from ‘_OI std::__copy_move_a1(_II, _II, _OI) [with bool _IsMove = false; _II = spvtools::val::BasicBlock* const*; _OI = spvtools::val::BasicBlock**]’ at /usr/include/c++/12/bits/stl_algobase.h:528:42,
inlined from ‘_OI std::__copy_move_a(_II, _II, _OI) [with bool _IsMove = false; _II = spvtools::val::BasicBlock* const*; _OI = spvtools::val::BasicBlock**]’ at /usr/include/c++/12/bits/stl_algobase.h:535:31,
inlined from ‘_OI std::copy(_II, _II, _OI) [with _II = spvtools::val::BasicBlock* const*; _OI = spvtools::val::BasicBlock**]’ at /usr/include/c++/12/bits/stl_algobase.h:626:7,
inlined from ‘static _ForwardIterator std::__uninitialized_copy::__uninit_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = spvtools::val::BasicBlock* const*; _ForwardIterator = spvtools::val::BasicBlock**]’ at /usr/include/c++/12/bits/stl_uninitialized.h:147:27,
inlined from ‘_ForwardIterator std::uninitialized_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = spvtools::val::BasicBlock* const*; _ForwardIterator = spvtools::val::BasicBlock**]’ at /usr/include/c++/12/bits/stl_uninitialized.h:185:15,
inlined from ‘_ForwardIterator std::__uninitialized_copy_a(_InputIterator, _InputIterator, _ForwardIterator, allocator<_Tp>&) [with _InputIterator = spvtools::val::BasicBlock* const*; _ForwardIterator = spvtools::val::BasicBlock**; _Tp = spvtools::val::BasicBlock*]’ at /usr/include/c++/12/bits/stl_uninitialized.h:372:37,
inlined from ‘void std::vector<_Tp, _Alloc>::_M_assign_aux(_ForwardIterator, _ForwardIterator, std::forward_iterator_tag) [with _ForwardIterator = spvtools::val::BasicBlock* const*; _Tp = spvtools::val::BasicBlock*; _Alloc = std::allocator]’ at /usr/include/c++/12/bits/vector.tcc:339:35,
inlined from ‘std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = spvtools::val::BasicBlock*; _Alloc = std::allocator]’ at /usr/include/c++/12/bits/stl_vector.h:787:21,
inlined from ‘spv_result_t spvtools::val::Function::RegisterLoopMerge(uint32_t, uint32_t)’ at /home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/git/source/val/function.cpp:91:71:
/usr/include/c++/12/bits/stl_algobase.h:434:30: error: ‘void* __builtin_memcpy(void*, const void*, long unsigned int)’ forming offset 8 is out of the bounds [0, 8] of object ‘’ with type ‘spvtools::val::BasicBlock* const [1]’ [-Werror=array-bounds]
434 | __builtin_memmove(__result, __first, sizeof(_Tp) * _Num);
| ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/git/source/val/function.cpp: In member function ‘spv_result_t spvtools::val::Function::RegisterLoopMerge(uint32_t, uint32_t)’:
/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/git/source/val/function.cpp:91:71: note: ‘’ declared here
91 | continue_target_headers_[&continue_target_block] = {current_block_};
| ^
cc1plus: all warnings being treated as errors
```

The build is configured by Yocto as follows (reformatted for clarity). `$oecmake_sitefile` is empty:

```
cmake \
-G 'Ninja' -DCMAKE_MAKE_PROGRAM=ninja \
$oecmake_sitefile \
/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/git \
-DCMAKE_INSTALL_PREFIX:PATH=/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/recipe-sysroot-native/usr \
-DCMAKE_INSTALL_BINDIR:PATH=bin \
-DCMAKE_INSTALL_SBINDIR:PATH=sbin \
-DCMAKE_INSTALL_LIBEXECDIR:PATH=libexec \
-DCMAKE_INSTALL_SYSCONFDIR:PATH=/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/recipe-sysroot-native/etc \
-DCMAKE_INSTALL_SHAREDSTATEDIR:PATH=../com \
-DCMAKE_INSTALL_LOCALSTATEDIR:PATH=/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/recipe-sysroot-native/var \
-DCMAKE_INSTALL_LIBDIR:PATH=lib \
-DCMAKE_INSTALL_INCLUDEDIR:PATH=include \
-DCMAKE_INSTALL_DATAROOTDIR:PATH=share \
-DPYTHON_EXECUTABLE:PATH=/usr/bin/python3 \
-DPython_EXECUTABLE:PATH=/usr/bin/python3 \
-DPython3_EXECUTABLE:PATH=/usr/bin/python3 \
-DLIB_SUFFIX= \
-DCMAKE_INSTALL_SO_NO_EXE=0 \
-DCMAKE_TOOLCHAIN_FILE:FILEPATH=/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/toolchain.cmake \
-DCMAKE_NO_SYSTEM_FROM_IMPORTED=1
-DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON \
-DFETCHCONTENT_FULLY_DISCONNECTED=ON \
-DCMAKE_EXPORT_COMPILE_COMMANDS:BOOL=ON \
-DSPIRV-Headers_SOURCE_DIR=/home/ewhac/devel/yoc-generic/poky/build/tmp/work/x86_64-linux/spirv-tools-native/1.3.290.0/recipe-sysroot-native/usr \
-DSPIRV_TOOLS_BUILD_STATIC=OFF \
-DBUILD_SHARED_LIBS=ON \
-DSPIRV_SKIP_TESTS=ON \
-Wno-dev
```