[turbofan] Rename Node::RemoveAllInputs() to Node::NullAllInputs().

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1032553006

Cr-Commit-Position: refs/heads/master@{#27401}

src/compiler/control-flow-optimizer.cc

@@ -242,11 +242,11 @@ bool ControlFlowOptimizer::TryBuildSwitch(Node* node) {
     DCHECK_NE(value, value1);
 
     if (branch != node) {
-      branch->RemoveAllInputs();
+      branch->NullAllInputs();
       if_true->ReplaceInput(0, node);
     }
     if_true->set_op(common()->IfValue(value));
-    if_false->RemoveAllInputs();
+    if_false->NullAllInputs();
     Enqueue(if_true);
 
     branch = branch1;
@@ -271,7 +271,7 @@ bool ControlFlowOptimizer::TryBuildSwitch(Node* node) {
   if_false->set_op(common()->IfDefault());
   if_false->ReplaceInput(0, node);
   Enqueue(if_false);
-  branch->RemoveAllInputs();
+  branch->NullAllInputs();
   return true;
 }
 

src/compiler/js-inlining.cc

@@ -142,7 +142,7 @@ void Inlinee::UnifyReturn(JSGraph* jsgraph) {
         values.push_back(NodeProperties::GetValueInput(input, 0));
         effects.push_back(NodeProperties::GetEffectInput(input));
         edge.UpdateTo(NodeProperties::GetControlInput(input));
-        input->RemoveAllInputs();
+        input->NullAllInputs();
         break;
       default:
         UNREACHABLE();

src/compiler/node.cc

@@ -40,7 +40,7 @@ Node* Node::New(Zone* zone, NodeId id, const Operator* op, int input_count,
 
 void Node::Kill() {
   DCHECK_NOT_NULL(op());
-  RemoveAllInputs();
+  NullAllInputs();
   DCHECK(uses().empty());
 }
 
@@ -89,7 +89,7 @@ void Node::RemoveInput(int index) {
 }
 
 
-void Node::RemoveAllInputs() {
+void Node::NullAllInputs() {
   for (Edge edge : input_edges()) edge.UpdateTo(nullptr);
 }
 

src/compiler/node.h

@@ -63,7 +63,7 @@ class Node FINAL {
   void AppendInput(Zone* zone, Node* new_to);
   void InsertInput(Zone* zone, int index, Node* new_to);
   void RemoveInput(int index);
-  void RemoveAllInputs();
+  void NullAllInputs();
   void TrimInputCount(int new_input_count);
 
   int UseCount() const;

src/compiler/simplified-lowering.cc

@@ -1069,7 +1069,7 @@ class RepresentationSelector {
       replacements_.push_back(node);
       replacements_.push_back(replacement);
     }
-    node->RemoveAllInputs();  // Node is now dead.
+    node->NullAllInputs();  // Node is now dead.
   }
 
   void PrintUseInfo(Node* node) {

test/cctest/compiler/test-node.cc

@@ -668,7 +668,7 @@ TEST(TrimInputCountOutOfLine2) {
 }
 
 
-TEST(RemoveAllInputs) {
+TEST(NullAllInputs) {
   GraphTester graph;
 
   for (int i = 0; i < 2; i++) {
@@ -685,16 +685,16 @@ TEST(RemoveAllInputs) {
       CHECK_INPUTS(n2, n0, n1);
     }
 
-    n0->RemoveAllInputs();
+    n0->NullAllInputs();
     CHECK_INPUTS(n0, NONE);
 
     CHECK_USES(n0, n1, n2);
-    n1->RemoveAllInputs();
+    n1->NullAllInputs();
     CHECK_INPUTS(n1, NULL);
     CHECK_INPUTS(n2, n0, n1);
     CHECK_USES(n0, n2);
 
-    n2->RemoveAllInputs();
+    n2->NullAllInputs();
     CHECK_INPUTS(n1, NULL);
     CHECK_INPUTS(n2, NULL, NULL);
     CHECK_USES(n0, NONE);
@@ -709,7 +709,7 @@ TEST(RemoveAllInputs) {
     CHECK_INPUTS(n1, n1);
     CHECK_USES(n0, NONE);
     CHECK_USES(n1, n1);
-    n1->RemoveAllInputs();
+    n1->NullAllInputs();
 
     CHECK_INPUTS(n0, NONE);
     CHECK_INPUTS(n1, NULL);