[turbofan] Deprecate CompilationInfo::has_scope predicate.

src/crankshaft/x87/lithium-x87.cc

Index: src/crankshaft/x87/lithium-x87.cc
diff --git a/src/crankshaft/x87/lithium-x87.cc b/src/crankshaft/x87/lithium-x87.cc
index 51d9cd697b1a716a8e37996111f0daeb0de93faf..1f9176d2c4a6901f0e496d975a570da46101b67c 100644
--- a/src/crankshaft/x87/lithium-x87.cc
+++ b/src/crankshaft/x87/lithium-x87.cc
@@ -960,7 +960,7 @@ void LChunkBuilder::AddInstruction(LInstruction* 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;