[turbofan] Remove obsolete helpers from graph builder.

R=jarin@chromium.org

Change-Id: Ib8f657957895f703189f2347f5d8017e16de05ae
Reviewed-on: https://chromium-review.googlesource.com/455798Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43902}

src/compiler/bytecode-graph-builder.cc

@@ -2089,7 +2089,7 @@ void BytecodeGraphBuilder::VisitDebugger() {
 DEBUG_BREAK_BYTECODE_LIST(DEBUG_BREAK);
 #undef DEBUG_BREAK
 
-void BytecodeGraphBuilder::BuildForInPrepare() {
+void BytecodeGraphBuilder::VisitForInPrepare() {
   PrepareEagerCheckpoint();
   Node* receiver =
       environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
@@ -2099,8 +2099,6 @@ void BytecodeGraphBuilder::BuildForInPrepare() {
       Environment::kAttachFrameState);
 }
 
-void BytecodeGraphBuilder::VisitForInPrepare() { BuildForInPrepare(); }
-
 void BytecodeGraphBuilder::VisitForInContinue() {
   PrepareEagerCheckpoint();
   Node* index =
@@ -2113,7 +2111,7 @@ void BytecodeGraphBuilder::VisitForInContinue() {
   environment()->BindAccumulator(exit_cond, Environment::kAttachFrameState);
 }
 
-void BytecodeGraphBuilder::BuildForInNext() {
+void BytecodeGraphBuilder::VisitForInNext() {
   PrepareEagerCheckpoint();
   Node* receiver =
       environment()->LookupRegister(bytecode_iterator().GetRegisterOperand(0));
@@ -2130,8 +2128,6 @@ void BytecodeGraphBuilder::BuildForInNext() {
   environment()->BindAccumulator(value, Environment::kAttachFrameState);
 }
 
-void BytecodeGraphBuilder::VisitForInNext() { BuildForInNext(); }
-
 void BytecodeGraphBuilder::VisitForInStep() {
   PrepareEagerCheckpoint();
   Node* index =

src/compiler/bytecode-graph-builder.h

@@ -166,16 +166,12 @@ class BytecodeGraphBuilder {
     BuildCall(tail_call_mode, receiver_hint, args.begin(), args.size(),
               slot_id);
   }
-  void BuildThrow();
   void BuildBinaryOp(const Operator* op);
   void BuildBinaryOpWithImmediate(const Operator* op);
   void BuildCompareOp(const Operator* op);
   void BuildTestingOp(const Operator* op);
   void BuildDelete(LanguageMode language_mode);
   void BuildCastOperator(const Operator* op);
-  void BuildForInPrepare();
-  void BuildForInNext();
-  void BuildInvokeIntrinsic();
 
   // Optional early lowering to the simplified operator level. Returns the node
   // representing the lowered operation or {nullptr} if no lowering available.