[turbofan] Remove kInterpreterDispatch CallDescriptor kind in favor of flag.

src/compiler/code-generator.cc

Index: src/compiler/code-generator.cc
diff --git a/src/compiler/code-generator.cc b/src/compiler/code-generator.cc
index a70518939aaa5bb5af7a4dc8c57896dcb03fee8e..0f5472903310f6cda474fa02b8756751c99e91e1 100644
--- a/src/compiler/code-generator.cc
+++ b/src/compiler/code-generator.cc
@@ -247,8 +247,7 @@ bool CodeGenerator::IsMaterializableFromRoot(
     Handle<HeapObject> object, Heap::RootListIndex* index_return) {
   const CallDescriptor* incoming_descriptor =
       linkage()->GetIncomingDescriptor();
-  if (incoming_descriptor->IsJSFunctionCall() ||
-      incoming_descriptor->IsInterpreterDispatch()) {
+  if (incoming_descriptor->flags() & CallDescriptor::kCanUseRoots) {
     RootIndexMap map(isolate());
     int root_index = map.Lookup(*object);
     if (root_index != RootIndexMap::kInvalidRootIndex) {