[turbofan] [deoptimizer] Support inlining of ES6 tail calls.

src/objects-printer.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/objects.h"
 
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/interpreter/bytecodes.h"
 #include "src/objects-inl.h"
@@ skipping 844 matching lines @@
   JSObjectPrintBody(os, this);
 }
 
 
 void JSFunction::JSFunctionPrint(std::ostream& os) {  // NOLINT
   JSObjectPrintHeader(os, this, "Function");
   os << "\n - initial_map = ";
   if (has_initial_map()) os << Brief(initial_map());
   os << "\n - shared_info = " << Brief(shared());
   os << "\n - name = " << Brief(shared()->name());
+  os << "\n - formal_parameter_count = "
+     << shared()->internal_formal_parameter_count();
   if (shared()->is_generator()) {
     os << "\n   - generator";
   }
   os << "\n - context = " << Brief(context());
   os << "\n - literals = " << Brief(literals());
   os << "\n - code = " << Brief(code());
   JSObjectPrintBody(os, this);
 }
 
 
 void SharedFunctionInfo::SharedFunctionInfoPrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "SharedFunctionInfo");
-  os << "\n - name: " << Brief(name());
-  os << "\n - expected_nof_properties: " << expected_nof_properties();
-  os << "\n - ast_node_count: " << ast_node_count();
+  os << "\n - name = " << Brief(name());
+  os << "\n - formal_parameter_count = " << internal_formal_parameter_count();
+  os << "\n - expected_nof_properties = " << expected_nof_properties();
+  os << "\n - ast_node_count = " << ast_node_count();
   os << "\n - instance class name = ";
   instance_class_name()->Print(os);
   os << "\n - code = " << Brief(code());
   if (HasSourceCode()) {
     os << "\n - source code = ";
     String* source = String::cast(Script::cast(script())->source());
     int start = start_position();
     int length = end_position() - start;
     base::SmartArrayPointer<char> source_string = source->ToCString(
         DISALLOW_NULLS, FAST_STRING_TRAVERSAL, start, length, NULL);
@@ skipping 439 matching lines @@
 void JSObject::PrintTransitions(std::ostream& os) {  // NOLINT
   Object* transitions = map()->raw_transitions();
   int num_transitions = TransitionArray::NumberOfTransitions(transitions);
   if (num_transitions == 0) return;
   os << "\n - transitions";
   TransitionArray::PrintTransitions(os, transitions, false);
 }
 #endif  // defined(DEBUG) || defined(OBJECT_PRINT)
 }  // namespace internal
 }  // namespace v8