[interpreter] Clarify some names and comments.

src/interpreter/bytecode-array-builder.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/bytecode-array-builder.h"
 
 #include "src/globals.h"
 #include "src/interpreter/bytecode-array-writer.h"
 #include "src/interpreter/bytecode-dead-code-optimizer.h"
 #include "src/interpreter/bytecode-label.h"
@@ skipping 397 matching lines @@
 BytecodeArrayBuilder& BytecodeArrayBuilder::PushContext(Register context) {
   Output(Bytecode::kPushContext, RegisterOperand(context));
   return *this;
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::PopContext(Register context) {
   Output(Bytecode::kPopContext, RegisterOperand(context));
   return *this;
 }
 
-BytecodeArrayBuilder& BytecodeArrayBuilder::CastAccumulatorToJSObject(
+BytecodeArrayBuilder& BytecodeArrayBuilder::ConvertAccumulatorToObject(
     Register out) {
   Output(Bytecode::kToObject, RegisterOperand(out));
   return *this;
 }
 
-BytecodeArrayBuilder& BytecodeArrayBuilder::CastAccumulatorToName(
+BytecodeArrayBuilder& BytecodeArrayBuilder::ConvertAccumulatorToName(
     Register out) {
   Output(Bytecode::kToName, RegisterOperand(out));
   return *this;
 }
 
-BytecodeArrayBuilder& BytecodeArrayBuilder::CastAccumulatorToNumber(
+BytecodeArrayBuilder& BytecodeArrayBuilder::ConvertAccumulatorToNumber(
     Register out) {
   Output(Bytecode::kToNumber, RegisterOperand(out));
   return *this;
 }
 
 BytecodeArrayBuilder& BytecodeArrayBuilder::Bind(BytecodeLabel* label) {
   pipeline_->BindLabel(label);
   LeaveBasicBlock();
   return *this;
 }
@@ skipping 549 matching lines @@
       return Bytecode::kTailCall;
     default:
       UNREACHABLE();
   }
   return Bytecode::kIllegal;
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8