Make generic algorithm less generic.

src/compiler/verifier.cc

Index: src/compiler/verifier.cc
diff --git a/src/compiler/verifier.cc b/src/compiler/verifier.cc
index 29342763b153b9e69adcef40b3dfd47cb712859c..5d30198b860b5d7fdf7cbab11ffa526afaa5b572 100644
--- a/src/compiler/verifier.cc
+++ b/src/compiler/verifier.cc
@@ -52,7 +52,7 @@ class Verifier::Visitor : public NullNodeVisitor {
   Visitor(Zone* z, Typing typed) : zone(z), typing(typed) {}
 
   // Fulfills the PreNodeCallback interface.
-  GenericGraphVisit::Control Pre(Node* node);
+  void Pre(Node* node);
 
   Zone* zone;
   Typing typing;
@@ -120,7 +120,7 @@ class Verifier::Visitor : public NullNodeVisitor {
 };
 
 
-GenericGraphVisit::Control Verifier::Visitor::Pre(Node* node) {
+void Verifier::Visitor::Pre(Node* node) {
   int value_count = node->op()->ValueInputCount();
   int context_count = OperatorProperties::GetContextInputCount(node->op());
   int frame_state_count =
@@ -727,8 +727,6 @@ GenericGraphVisit::Control Verifier::Visitor::Pre(Node* node) {
       // TODO(rossberg): Check.
       break;
   }
-
-  return GenericGraphVisit::CONTINUE;
 }