[clang-tools-extra] [clang-doc] markdown parser (PR #155887)

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


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

<details>
<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- clang-tools-extra/clang-doc/MDParser.cpp clang-tools-extra/clang-doc/MDParser.h clang-tools-extra/unittests/clang-doc/MDParserTest.cpp clang-tools-extra/clang-doc/Representation.h
``````````

:warning:
The reproduction instructions above might return results for more than one PR
in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
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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/MDParser.cpp b/clang-tools-extra/clang-doc/MDParser.cpp
index 80e038600..e27a337b1 100644
--- a/clang-tools-extra/clang-doc/MDParser.cpp
+++ b/clang-tools-extra/clang-doc/MDParser.cpp
@@ -27,8 +27,8 @@ MarkdownParser::processDelimiters(SmallString<64> &Line, const size_t &Origin) {
                       (!isPunctuation(Proceeding) || isWhitespace(Preceeding) ||
                        isPunctuation(Preceeding));
   bool RightFlanking = !isWhitespace(Preceeding) &&
-                       (!isPunctuation(Preceeding) || isWhitespace(Proceeding) ||
-                        isPunctuation(Proceeding));
+                       (!isPunctuation(Preceeding) ||
+                        isWhitespace(Proceeding) || isPunctuation(Proceeding));
 
   if (LeftFlanking && RightFlanking)
     return {DelimiterContext{LeftFlanking, RightFlanking, true, true}, Idx};
diff --git a/clang-tools-extra/clang-doc/MDParser.h b/clang-tools-extra/clang-doc/MDParser.h
index 32599eaae..723d9ec34 100644
--- a/clang-tools-extra/clang-doc/MDParser.h
+++ b/clang-tools-extra/clang-doc/MDParser.h
@@ -23,7 +23,7 @@ enum class MDType {
 enum class MDTokenType { LeftDelimiterRun, RightDelimiterRun, Text };
 
 struct Node {
-  SmallVector<Node*> Children;
+  SmallVector<Node *> Children;
   MDType Type;
   Node *Parent;
   std::string Content;
@@ -89,7 +89,8 @@ class MarkdownParser {
 
   /// @param Lines An entire Document that resides in a comment.
   /// @return the root of a Markdown document.
-  Node* parse(std::vector<SmallString<64>> &Lines);
+  Node *parse(std::vector<SmallString<64>> &Lines);
+
 public:
   MarkdownParser() : Arena(BumpPtrAllocator()), Saver(Arena) {}
   std::string render(std::vector<SmallString<64>> &Lines);

``````````

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https://github.com/llvm/llvm-project/pull/155887