[builtins] Construct builtin frame in String/Number ctors

src/isolate.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/isolate.h"
 
 #include <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
@@ skipping 378 matching lines @@
       case StackFrame::INTERPRETED:
       case StackFrame::BUILTIN: {
         JavaScriptFrame* js_frame = JavaScriptFrame::cast(frame);
         // Set initial size to the maximum inlining level + 1 for the outermost
         // function.
         List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
         js_frame->Summarize(&frames);
         for (int i = frames.length() - 1; i >= 0; i--) {
           Handle<JSFunction> fun = frames[i].function();
           Handle<Object> recv = frames[i].receiver();
+          if (frame->type() == StackFrame::BUILTIN && fun->IsConstructor()) {
+            // Help CallSite::IsConstructor to properly detect constructors
+            // implemented in assembler.
+            recv = handle(heap()->call_site_constructor_symbol(), this);
+          }
           // Filter out internal frames that we do not want to show.
           if (!IsVisibleInStackTrace(*fun, *caller, &seen_caller)) continue;
           // Filter out frames from other security contexts.
           if (!this->context()->HasSameSecurityTokenAs(fun->context())) {
             continue;
           }
           elements = MaybeGrow(this, elements, cursor, cursor + 4);
 
           Handle<AbstractCode> abstract_code = frames[i].abstract_code();
 
@@ skipping 2677 matching lines @@
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8