[clang-tools-extra] [clangd] Improve Markup Rendering (PR #140498)

[Maksim Ivanov via cfe-commits]

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@@ -341,27 +437,58 @@ std::string Block::asPlainText() const {
   return llvm::StringRef(OS.str()).trim().str();
 }
 
+void Paragraph::renderEscapedMarkdown(llvm::raw_ostream &OS) const {
+  bool NeedsSpace = false;
+  bool HasChunks = false;
+  for (auto &C : Chunks) {
+    if (C.SpaceBefore || NeedsSpace)
+      OS << " ";
+    switch (C.Kind) {
+    case ChunkKind::PlainText:
+      OS << renderText(C.Contents, !HasChunks, true);
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emaxx-google wrote:

nit: Document the parameter name since it's non-obvious: `/*EscapeMarkdown=*/true`.

https://github.com/llvm/llvm-project/pull/140498