SymbolGraph: Use getAllInheritedProtocols()

Author: slavapestov

lib/SymbolGraphGen/SymbolGraph.cpp

@@ -492,14 +492,10 @@ void SymbolGraph::recordConformanceRelationships(Symbol S) {
   const auto D = S.getLocalSymbolDecl();
   if (const auto *NTD = dyn_cast<NominalTypeDecl>(D)) {
     if (auto *PD = dyn_cast<ProtocolDecl>(NTD)) {
-      PD->walkInheritedProtocols([&](ProtocolDecl *inherited) {
-        if (inherited != PD) {
-          recordEdge(S, Symbol(this, inherited, nullptr),
-                     RelationshipKind::ConformsTo(), nullptr);
-        }
-
-        return TypeWalker::Action::Continue;
-      });
+      for (auto *inherited : PD->getAllInheritedProtocols()) {
+        recordEdge(S, Symbol(this, inherited, nullptr),
+                   RelationshipKind::ConformsTo(), nullptr);
+      }
     } else {
       for (const auto *Conformance : NTD->getAllConformances()) {
         // Check to make sure that this conformance wasn't declared via an