[clang] [Clang][NFC] Rename UnqualPtrTy to DefaultPtrTy (PR #163207)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-gcc-ubuntu` running on `sie-linux-worker3` while building `clang` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/174/builds/26255

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

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: ExecutionEngine/JITLink/x86-64/ELF_ehframe_large_static_personality_encodings.s' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 3
/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llvm-mc -triple=x86_64-pc-linux-gnu -large-code-model    -filetype=obj -o /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/test/ExecutionEngine/JITLink/x86-64/Output/ELF_ehframe_large_static_personality_encodings.s.tmp /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/ELF_ehframe_large_static_personality_encodings.s
# executed command: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llvm-mc -triple=x86_64-pc-linux-gnu -large-code-model -filetype=obj -o /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/test/ExecutionEngine/JITLink/x86-64/Output/ELF_ehframe_large_static_personality_encodings.s.tmp /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/ELF_ehframe_large_static_personality_encodings.s
# note: command had no output on stdout or stderr
# RUN: at line 5
/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llvm-jitlink -num-threads=0 -debug-only=jitlink -noexec               -phony-externals /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/test/ExecutionEngine/JITLink/x86-64/Output/ELF_ehframe_large_static_personality_encodings.s.tmp 2>&1               | /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/ELF_ehframe_large_static_personality_encodings.s
# executed command: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llvm-jitlink -num-threads=0 -debug-only=jitlink -noexec -phony-externals /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/test/ExecutionEngine/JITLink/x86-64/Output/ELF_ehframe_large_static_personality_encodings.s.tmp
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/ExecutionEngine/JITLink/x86-64/ELF_ehframe_large_static_personality_encodings.s
# note: command had no output on stdout or stderr

--

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


```

</details>

https://github.com/llvm/llvm-project/pull/163207