[clang] [llvm] [clang] Add test run of 'dump_ast_matchers.py' (PR #165472)

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github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

* 88430 tests passed
* 1694 tests skipped
* 1 test failed

## Failed Tests
(click on a test name to see its output)

### Clang
<details>
<summary>Clang.AST/ast_matchers_updated.test</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 3
"/usr/bin/python3" /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/AST/../../docs/tools/dump_ast_matchers.py /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/AST/Output/ast_matchers_updated.test.tmp
# executed command: /usr/bin/python3 /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/AST/../../docs/tools/dump_ast_matchers.py /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/AST/Output/ast_matchers_updated.test.tmp
# note: command had no output on stdout or stderr
# RUN: at line 4
diff /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/AST/Output/ast_matchers_updated.test.tmp /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/AST/../../docs/LibASTMatchersReference.html
# executed command: diff /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/AST/Output/ast_matchers_updated.test.tmp /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/AST/../../docs/LibASTMatchersReference.html
# .---command stdout------------
# | *** /home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/clang/test/AST/Output/ast_matchers_updated.test.tmp
# | --- /home/gha/actions-runner/_work/llvm-project/llvm-project/clang/test/AST/../../docs/LibASTMatchersReference.html
# | ***************
# | *** 8928,8934 ****
# |   
# |   
# |   <tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1FieldDecl.html">FieldDecl</a>></td><td class="name" onclick="toggle('hasInClassInitializer0')"><a name="hasInClassInitializer0Anchor">hasInClassInitializer</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr>
# | ! <tr><td colspan="4" class="doc" id="hasInClassInitializer0"><pre>Matches non-static data memberss that have an in-class initializer.
# |   
# |   Given
# |     class C {
# | --- 8928,8934 ----
# |   
# |   
# |   <tr><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1FieldDecl.html">FieldDecl</a>></td><td class="name" onclick="toggle('hasInClassInitializer0')"><a name="hasInClassInitializer0Anchor">hasInClassInitializer</a></td><td>Matcher<<a href="https://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>> InnerMatcher</td></tr>
# | ! <tr><td colspan="4" class="doc" id="hasInClassInitializer0"><pre>Matches non-static data members that have an in-class initializer.
# |   
# |   Given
# |     class C {
# `-----------------------------
# error: command failed with exit status: 1

--

```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/165472