[debug] Untangle DebugInfo from break point support

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index 07c7be1317a954839183e326c8cacaecd8c4fb03..5c63264c645fb2e9edd3821dc31e021918901082 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -13377,6 +13377,14 @@ void SharedFunctionInfo::SetScript(Handle<SharedFunctionInfo> shared,
   shared->set_script(*script_object);
 }
 
+bool SharedFunctionInfo::HasBreakInfo() const {
+  if (!HasDebugInfo()) return false;
+  DebugInfo* info = DebugInfo::cast(debug_info());
+  bool has_break_info = info->HasBreakInfo();
+  DCHECK_IMPLIES(has_break_info, HasDebugCode());
+  return has_break_info;
+}
+
 DebugInfo* SharedFunctionInfo::GetDebugInfo() const {
   DCHECK(HasDebugInfo());
   return DebugInfo::cast(debug_info());