VM [KERNEL] Use simpleInstanceOf in kernel.

runtime/vm/object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_OBJECT_H_
 #define RUNTIME_VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 5868 matching lines @@
   RawString* BuildName(NameVisibility visibility) const;
 
  protected:
   HEAP_OBJECT_IMPLEMENTATION(AbstractType, Instance);
   friend class Class;
   friend class Function;
   friend class TypeArguments;
 };
 
 
+bool simpleInstanceOfType(const AbstractType& type);

[Vyacheslav Egorov (Google), 2017/04/05 10:49:47]

We avoid using global functions like this. I suggest placing it on
FlowGraphCompiler.

Also it should be named FlowGraphCompiler::IsSimpleInstanceOfType(...) according
to the style guide.

+
+
 // A Type consists of a class, possibly parameterized with type
 // arguments. Example: C<T1, T2>.
 // An unresolved class is a String specifying the class name.
 //
 // Caution: 'RawType*' denotes a 'raw' pointer to a VM object of class Type, as
 // opposed to 'Type' denoting a 'handle' to the same object. 'RawType' does not
 // relate to a 'raw type', as opposed to a 'cooked type' or 'rare type'.
 class Type : public AbstractType {
  public:
   static intptr_t type_class_id_offset() {
@@ skipping 3070 matching lines @@
 
 inline void TypeArguments::SetHash(intptr_t value) const {
   // This is only safe because we create a new Smi, which does not cause
   // heap allocation.
   StoreSmi(&raw_ptr()->hash_, Smi::New(value));
 }
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_OBJECT_H_