[clang] [Clang] Fix typo 'dereferencable' to 'dereferenceable' (PR #116761)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `openmp-offload-amdgpu-runtime-2` running on `rocm-worker-hw-02` while building `clang` at step 8 "Add check check-llvm".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/10/builds/899

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 8 (Add check check-llvm) failure: test (failure)
******************** TEST 'LLVM-Unit :: Support/./SupportTests/134/175' FAILED ********************
Script(shard):
--
GTEST_OUTPUT=json:/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/unittests/Support/./SupportTests-LLVM-Unit-679404-134-175.json GTEST_SHUFFLE=0 GTEST_TOTAL_SHARDS=175 GTEST_SHARD_INDEX=134 /home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/unittests/Support/./SupportTests
--

Script:
--
/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.build/unittests/Support/./SupportTests --gtest_filter=Caching.Normal
--
/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/llvm/unittests/Support/Caching.cpp:55: Failure
Value of: AddStream
  Actual: false
Expected: true


/home/botworker/builds/openmp-offload-amdgpu-runtime-2/llvm.src/llvm/unittests/Support/Caching.cpp:55
Value of: AddStream
  Actual: false
Expected: true



********************


```

</details>

https://github.com/llvm/llvm-project/pull/116761