Clean up some random TODO(titzer)s and spelling mistakes.

src/compiler/instruction-selector.cc

 // Copyright 2014 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/compiler/instruction-selector.h"
 
 #include <limits>
 
 #include "src/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
@@ skipping 750 matching lines @@
     }
     case BasicBlock::kDeoptimize: {
       DeoptimizeKind kind = DeoptimizeKindOf(input->op());
       Node* value = input->InputAt(0);
       return VisitDeoptimize(kind, value);
     }
     case BasicBlock::kThrow:
       DCHECK_EQ(IrOpcode::kThrow, input->opcode());
       return VisitThrow(input->InputAt(0));
     case BasicBlock::kNone: {
-      // TODO(titzer): exit block doesn't have control.
+      // Exit block doesn't have control.
       DCHECK_NULL(input);
       break;
     }
     default:
       UNREACHABLE();
       break;
   }
 }
 
 
@@ skipping 822 matching lines @@
     case DeoptimizeKind::kSoft:
       opcode |= MiscField::encode(Deoptimizer::SOFT);
       break;
   }
   Emit(opcode, 0, nullptr, args.size(), &args.front(), 0, nullptr);
 }
 
 
 void InstructionSelector::VisitThrow(Node* value) {
   OperandGenerator g(this);
-  Emit(kArchThrowTerminator, g.NoOutput());  // TODO(titzer)
+  Emit(kArchThrowTerminator, g.NoOutput());
 }
 
 
 FrameStateDescriptor* InstructionSelector::GetFrameStateDescriptor(
     Node* state) {
   DCHECK(state->opcode() == IrOpcode::kFrameState);
   DCHECK_EQ(kFrameStateInputCount, state->InputCount());
   FrameStateInfo state_info = OpParameter<FrameStateInfo>(state);
 
   int parameters = static_cast<int>(
@@ skipping 15 matching lines @@
   return new (instruction_zone()) FrameStateDescriptor(
       instruction_zone(), state_info.type(), state_info.bailout_id(),
       state_info.state_combine(), parameters, locals, stack,
       state_info.shared_info(), outer_state);
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8