Avoid dynamic initial map check when inlining call-new.

src/objects.h

 // 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.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include "allocation.h"
 #include "assert-scope.h"
 #include "builtins.h"
@@ skipping 5866 matching lines @@
     kPrototypeCheckGroup,
     // Group of code that depends on elements not being added to objects with
     // this map.
     kElementsCantBeAddedGroup,
     // Group of code that depends on global property values in property cells
     // not being changed.
     kPropertyCellChangedGroup,
     // Group of code that omit run-time type checks for the field(s) introduced
     // by this map.
     kFieldTypeGroup,
+    // Group of code that omit run-time type checks for initial maps of
+    // constructors.
+    kInitialMapChangedGroup,
     // Group of code that depends on tenuring information in AllocationSites
     // not being changed.
     kAllocationSiteTenuringChangedGroup,
     // Group of code that depends on element transition information in
     // AllocationSites not being changed.
     kAllocationSiteTransitionChangedGroup,
     kGroupCount = kAllocationSiteTransitionChangedGroup + 1
   };
 
   // Array for holding the index of the first code object of each group.
@@ skipping 5225 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_