Deprecate the %IsConstructCall intrinsic completely.

src/crankshaft/x64/lithium-codegen-x64.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_CRANKSHAFT_X64_LITHIUM_CODEGEN_X64_H_
 #define V8_CRANKSHAFT_X64_LITHIUM_CODEGEN_X64_H_
 
 
 #include "src/ast/scopes.h"
 #include "src/base/logging.h"
@@ skipping 255 matching lines @@
   Condition EmitTypeofIs(LTypeofIsAndBranch* instr, Register input);
 
   // Emits optimized code for %_IsString(x).  Preserves input register.
   // Returns the condition on which a final split to
   // true and false label should be made, to optimize fallthrough.
   Condition EmitIsString(Register input,
                          Register temp1,
                          Label* is_not_string,
                          SmiCheck check_needed);
 
-  // Emits optimized code for %_IsConstructCall().
-  // Caller should branch on equal condition.
-  void EmitIsConstructCall(Register temp);
-
   // Emits code for pushing either a tagged constant, a (non-double)
   // register, or a stack slot operand.
   void EmitPushTaggedOperand(LOperand* operand);
 
   // Emits optimized code to deep-copy the contents of statically known
   // object graphs (e.g. object literal boilerplate).
   void EmitDeepCopy(Handle<JSObject> object,
                     Register result,
                     Register source,
                     int* offset,
@@ skipping 94 matching lines @@
   Label exit_;
   Label done_;
   Label* external_exit_;
   int instruction_index_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CRANKSHAFT_X64_LITHIUM_CODEGEN_X64_H_