VM [KERNEL] Use simpleInstanceOf in kernel.

runtime/vm/flow_graph_builder.cc

Index: runtime/vm/flow_graph_builder.cc
diff --git a/runtime/vm/flow_graph_builder.cc b/runtime/vm/flow_graph_builder.cc
index 46aeb72b2d2a968a766aca48655943621ce10861..7fee5f27e0f05cacbbbeeb8d1d66b211dc626c53 100644
--- a/runtime/vm/flow_graph_builder.cc
+++ b/runtime/vm/flow_graph_builder.cc
@@ -1487,23 +1487,6 @@ Value* EffectGraphVisitor::BuildAssignableValue(TokenPosition token_pos,
 }
 
 
-static bool simpleInstanceOfType(const AbstractType& type) {
-  // Bail if the type is still uninstantiated at compile time.
-  if (!type.IsInstantiated()) return false;
-
-  // Bail if the type is a function or a Dart Function type.
-  if (type.IsFunctionType() || type.IsDartFunctionType()) return false;
-
-  ASSERT(type.HasResolvedTypeClass());
-  const Class& type_class = Class::Handle(type.type_class());
-  // Bail if the type has any type parameters.
-  if (type_class.IsGeneric()) return false;
-
-  // Finally a simple class for instance of checking.
-  return true;
-}
-
-
 void EffectGraphVisitor::BuildTypeTest(ComparisonNode* node) {
   ASSERT(Token::IsTypeTestOperator(node->kind()));
   const AbstractType& type = node->right()->AsTypeNode()->type();