[clang-tools-extra] [clang-doc] add a JSON generator (PR #142483)

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github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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You can test this locally with the following command:
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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions h,cpp -- clang-tools-extra/clang-doc/JSONGenerator.cpp clang-tools-extra/test/clang-doc/json/class-template.cpp clang-tools-extra/test/clang-doc/json/class.cpp clang-tools-extra/test/clang-doc/json/method-template.cpp clang-tools-extra/unittests/clang-doc/JSONGeneratorTest.cpp clang-tools-extra/clang-doc/Generators.cpp clang-tools-extra/clang-doc/Generators.h clang-tools-extra/clang-doc/tool/ClangDocMain.cpp
``````````

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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/clang-tools-extra/clang-doc/JSONGenerator.cpp b/clang-tools-extra/clang-doc/JSONGenerator.cpp
index 773031211..0459d061c 100644
--- a/clang-tools-extra/clang-doc/JSONGenerator.cpp
+++ b/clang-tools-extra/clang-doc/JSONGenerator.cpp
@@ -124,7 +124,7 @@ static void serializeReference(const SmallVector<Reference, 4> &References,
   json::Value ReferencesArray = Array();
   json::Array &ReferencesArrayRef = *ReferencesArray.getAsArray();
   ReferencesArrayRef.reserve(References.size());
-  for (const auto& Reference : References) {
+  for (const auto &Reference : References) {
     json::Value ReferenceVal = Object();
     auto &ReferenceObj = *ReferenceVal.getAsObject();
     auto BasePath = Reference.getRelativeFilePath("");

``````````

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https://github.com/llvm/llvm-project/pull/142483