[turbofan] Rename "original constructor" to "new target".

src/full-codegen/mips/full-codegen-mips.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.
 
 #if V8_TARGET_ARCH_MIPS
 
 // Note on Mips implementation:
 //
 // The result_register() for mips is the 'v0' register, which is defined
 // by the ABI to contain function return values. However, the first
@@ skipping 256 matching lines @@
 
     // Check the marker in the calling frame.
     __ bind(&check_frame_marker);
     __ lw(a1, MemOperand(a2, StandardFrameConstants::kMarkerOffset));
     function_in_register_a1 = false;
 
     Label non_construct_frame, done;
     __ Branch(&non_construct_frame, ne, a1,
               Operand(Smi::FromInt(StackFrame::CONSTRUCT)));
 
-    __ lw(v0,
-          MemOperand(a2, ConstructFrameConstants::kOriginalConstructorOffset));
+    __ lw(v0, MemOperand(a2, ConstructFrameConstants::kNewTargetOffset));
     __ Branch(&done);
 
     __ bind(&non_construct_frame);
     __ LoadRoot(v0, Heap::kUndefinedValueRootIndex);
     __ bind(&done);
 
     SetVar(new_target_var, v0, a2, a3);
   }
 
   Variable* arguments = scope()->arguments();
@@ skipping 4766 matching lines @@
          reinterpret_cast<uint32_t>(
              isolate->builtins()->OsrAfterStackCheck()->entry()));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS