Collect type profile for DevTools.

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 4e944f7fcda41fdde7cbd60e7f5931be9dfc69bd..f46167811b68296ff52414bc711fea58c64426a0 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -478,9 +478,23 @@ bool Renumber(ParseInfo* parse_info,
               Compiler::EagerInnerFunctionLiterals* eager_literals) {
   RuntimeCallTimerScope runtimeTimer(parse_info->isolate(),
                                      &RuntimeCallStats::CompileRenumber);
+
+  // CollectTypeProfile uses its own feedback slots. If we have existing
+  // FeedbackMetadata, we can only collect type profile, if the feedback vector
+  // has the appropriate slots.
+  bool collect_type_profile;
+  if (parse_info->shared_info().is_null() ||
+      parse_info->shared_info()->feedback_metadata()->length() == 0) {
+    collect_type_profile = FLAG_type_profile;
+  } else {
+    collect_type_profile =
+        parse_info->shared_info()->feedback_metadata()->HasTypeProfileSlot();
+  }
+
   if (!AstNumbering::Renumber(
           parse_info->isolate()->stack_guard()->real_climit(),
-          parse_info->zone(), parse_info->literal(), eager_literals)) {
+          parse_info->zone(), parse_info->literal(), eager_literals,
+          collect_type_profile)) {
     return false;
   }
   if (!parse_info->shared_info().is_null()) {