diff --git a/clang-tools-extra/clangd/Protocol.h b/clang-tools-extra/clangd/Protocol.h
--- a/clang-tools-extra/clangd/Protocol.h
+++ b/clang-tools-extra/clangd/Protocol.h
@@ -1576,10 +1576,10 @@
   /// naturally when placed inline with the code.
   std::string label;
 };
-const char *toString(InlayHintKind);
 llvm::json::Value toJSON(const InlayHint &);
 bool operator==(const InlayHint &, const InlayHint &);
 bool operator<(const InlayHint &, const InlayHint &);
+llvm::raw_ostream &operator<<(llvm::raw_ostream &, InlayHintKind);
 
 struct ReferenceContext {
   /// Include the declaration of the current symbol.
diff --git a/clang-tools-extra/clangd/Protocol.cpp b/clang-tools-extra/clangd/Protocol.cpp
--- a/clang-tools-extra/clangd/Protocol.cpp
+++ b/clang-tools-extra/clangd/Protocol.cpp
@@ -1345,6 +1345,10 @@
          std::tie(B.position, B.range, B.kind, B.label);
 }
 
+llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, InlayHintKind Kind) {
+  return OS << toString(Kind);
+}
+
 static const char *toString(OffsetEncoding OE) {
   switch (OE) {
   case OffsetEncoding::UTF8:
diff --git a/clang-tools-extra/clangd/tool/Check.cpp b/clang-tools-extra/clangd/tool/Check.cpp
--- a/clang-tools-extra/clangd/tool/Check.cpp
+++ b/clang-tools-extra/clangd/tool/Check.cpp
@@ -193,14 +193,13 @@
   }
 
   // Build Inlay Hints for the entire AST or the specified range
-  bool buildInlayHints(llvm::Optional<Range> LineRange) {
+  void buildInlayHints(llvm::Optional<Range> LineRange) {
     log("Building inlay hints");
     auto Hints = inlayHints(*AST, LineRange);
 
     for (const auto &Hint : Hints) {
-      vlog("  {0} {1} {2}", toString(Hint.kind), Hint.position, Hint.label);
+      vlog("  {0} {1} {2}", Hint.kind, Hint.position, Hint.label);
     }
-    return true;
   }
 
   // Run AST-based features at each token in the file.
@@ -219,7 +218,7 @@
       unsigned End = Start + Tok.length();
       Position Pos = offsetToPosition(Inputs.Contents, Start);
 
-      if (LineRange && LineRange->contains(Pos))
+      if (LineRange && !LineRange->contains(Pos))
         continue;
 
       trace::Span Trace("Token");
@@ -293,8 +292,9 @@
           : /*Don't turn on local configs for an arbitrary temp path.*/ ""));
   Checker C(File, Opts);
   if (!C.buildCommand(TFS) || !C.buildInvocation(TFS, Contents) ||
-      !C.buildAST() || !C.buildInlayHints(LineRange))
+      !C.buildAST())
     return false;
+  C.buildInlayHints(LineRange);
   C.testLocationFeatures(LineRange, EnableCodeCompletion);
 
   log("All checks completed, {0} errors", C.ErrCount);