[turbofan] Deprecate CompilationInfo::has_scope predicate.

src/crankshaft/x64/lithium-x64.cc

Index: src/crankshaft/x64/lithium-x64.cc
diff --git a/src/crankshaft/x64/lithium-x64.cc b/src/crankshaft/x64/lithium-x64.cc
index 5e2e9fa4cd48ba6df9004ddcc51280a1fb4f58e2..24d596893f975c52e2634c61172afafe69999fb5 100644
--- a/src/crankshaft/x64/lithium-x64.cc
+++ b/src/crankshaft/x64/lithium-x64.cc
@@ -942,7 +942,7 @@ LInstruction* LChunkBuilder::DoGoto(HGoto* instr) {
 
 LInstruction* LChunkBuilder::DoPrologue(HPrologue* instr) {
   LInstruction* result = new (zone()) LPrologue();
-  if (info_->num_heap_slots() > 0) {
+  if (info_->scope()->num_heap_slots() > 0) {
     result = MarkAsCall(result, instr);
   }
   return result;