[clang-tools-extra] [clangd] Support go-to-definition on type hints. The core part (PR #86629)

[Nathan Ridge via cfe-commits]

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@@ -1005,14 +1332,22 @@ class InlayHintVisitor : public RecursiveASTVisitor<InlayHintVisitor> {
     // The sugared type is more useful in some cases, and the canonical
     // type in other cases.
     auto Desugared = maybeDesugar(AST, T);
-    std::string TypeName = Desugared.getAsString(TypeHintPolicy);
-    if (T != Desugared && !shouldPrintTypeHint(TypeName)) {
+    std::vector<InlayHintLabelPart> Chunks;
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HighCommander4 wrote:

suggestion: add a small helper `std::vector<InlayHintLabelPart> buildTypeHint(QualType T, ASTContext& AST, ...);`

https://github.com/llvm/llvm-project/pull/86629