[inspector] introduced stepIntoAsync for chained callbacks

src/objects.h

 // Copyright 2015 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.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 #include <memory>
 
@@ skipping 7151 matching lines @@
 
   // Indicates that |has_no_side_effect| has been computed and set.
   DECL_BOOLEAN_ACCESSORS(computed_has_no_side_effect)
 
   // Indicates that the function should be skipped during stepping.
   DECL_BOOLEAN_ACCESSORS(debug_is_blackboxed)
 
   // Indicates that |debug_is_blackboxed| has been computed and set.
   DECL_BOOLEAN_ACCESSORS(computed_debug_is_blackboxed)
 
+  // Indicates that the function is Promise.all, Promise.race, Promise.resolve
+  // or Promise.reject.
+  DECL_BOOLEAN_ACCESSORS(is_promise_builtin)
+
   // The function's name if it is non-empty, otherwise the inferred name.
   String* DebugName();
 
   // The function cannot cause any side effects.
   bool HasNoSideEffect();
 
   // Used for flags such as --hydrogen-filter.
   bool PassesFilter(const char* raw_filter);
 
   // Position of the 'function' token in the script source.
@@ skipping 376 matching lines @@
 
   // Bit positions in debugger_hints.
   enum DebuggerHints {
     kIsAnonymousExpression,
     kNameShouldPrintAsAnonymous,
     kDeserialized,
     kHasNoSideEffect,
     kComputedHasNoSideEffect,
     kDebugIsBlackboxed,
     kComputedDebugIsBlackboxed,
+    kIsPromiseBuiltin,
   };
 
   // kFunctionKind has to be byte-aligned
   STATIC_ASSERT((kFunctionKind % kBitsPerByte) == 0);
 
   class FunctionKindBits : public BitField<FunctionKind, kFunctionKind, 10> {};
 
   class DeoptCountBits : public BitField<int, 0, 4> {};
   class OptReenableTriesBits : public BitField<int, 4, 18> {};
   class ICAgeBits : public BitField<int, 22, 8> {};
@@ skipping 3964 matching lines @@
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #include "src/objects/object-macros-undef.h"
 
 #endif  // V8_OBJECTS_H_