viable/strict/1788040196: Fix static launcher 16-bit float scalars (#184065)

发生了什么

Triton reports fp16 and bf16 scalar arguments as distinct 16-bit types, but the static launcher mapped both to the 32-bit float ABI code. CUDA and HIP therefore wrote four-byte values into slots that kernels read as two-byte scalars, while XPU bound every imported-kernel argument as a pointer-sized value. Assign distinct fp16 and bf16 ABI codes and pack them with the same semantics as Triton's generated launchers: d…

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