[interpreter] Clarify some names and comments.

src/interpreter/interpreter.cc

 // 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.
 
 #include "src/interpreter/interpreter.h"
 
 #include <fstream>
 #include <memory>
 
 #include "src/ast/prettyprinter.h"
@@ skipping 1285 matching lines @@
   Node* slot_index = __ BytecodeOperandIdx(0);
   Node* type_feedback_vector = __ LoadTypeFeedbackVector();
   Node* result = Generator::Generate(assembler, value, context,
                                      type_feedback_vector, slot_index);
   __ SetAccumulator(result);
   __ Dispatch();
 }
 
 // ToName
 //
-// Cast the object referenced by the accumulator to a name.
+// Convert the object referenced by the accumulator to a name.
 void Interpreter::DoToName(InterpreterAssembler* assembler) {
   Node* result = BuildUnaryOp(CodeFactory::ToName(isolate_), assembler);
   __ StoreRegister(result, __ BytecodeOperandReg(0));
   __ Dispatch();
 }
 
 // ToNumber
 //
-// Cast the object referenced by the accumulator to a number.
+// Convert the object referenced by the accumulator to a number.
 void Interpreter::DoToNumber(InterpreterAssembler* assembler) {
   Node* result = BuildUnaryOp(CodeFactory::ToNumber(isolate_), assembler);
   __ StoreRegister(result, __ BytecodeOperandReg(0));
   __ Dispatch();
 }
 
 // ToObject
 //
-// Cast the object referenced by the accumulator to a JSObject.
+// Convert the object referenced by the accumulator to a JSReceiver.
 void Interpreter::DoToObject(InterpreterAssembler* assembler) {
   Node* result = BuildUnaryOp(CodeFactory::ToObject(isolate_), assembler);
   __ StoreRegister(result, __ BytecodeOperandReg(0));
   __ Dispatch();
 }
 
 // Inc
 //
 // Increments value in the accumulator by one.
 void Interpreter::DoInc(InterpreterAssembler* assembler) {
@@ skipping 1129 matching lines @@
   __ StoreObjectField(generator, JSGeneratorObject::kContinuationOffset,
       __ SmiTag(new_state));
   __ SetAccumulator(old_state);
 
   __ Dispatch();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8