[clang] [clang][LoongArch] Add support for the _Float16 type (PR #141703)

[via cfe-commits]

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@@ -1001,6 +1001,7 @@ to ``float``; see below for more information on this emulation.
   * X86 (if SSE2 is available; natively if AVX512-FP16 is also available)
   * RISC-V (natively if Zfh or Zhinx is available)
   * SystemZ (emulated)
+  * LoongArch
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wangleiat wrote:

Do we need to add an `emulated` comment like on SystemZ?

https://github.com/llvm/llvm-project/pull/141703