Release b10857 · ggml-org/llama.cpp

Fix Vulkan-Hpp handle usage on 32-bit targets. (#22892)

On 32-bit platforms, Vulkan non-dispatchable handles such as VkBuffer are
represented as uint64_t, and Vulkan-Hpp disables implicit conversions for
type safety. This exposes two issues in ggml-vulkan:

vk::Buffer is streamed directly into std::ostream in debug/memory logs.
vk::Buffer is cast to VkBuffer before being passed to Vulkan-Hpp
CommandBuffer::copyBuffer APIs.

Fix these by add the operator<< for vk::Buffer, and
by passing vk::Buffer directly to Vulkan-Hpp copyBuffer calls.

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