Use canonical names for some name-based lookup.

runtime/vm/kernel.h

 // Copyright (c) 2016, 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_KERNEL_H_
 #define RUNTIME_VM_KERNEL_H_
 
 #if !defined(DART_PRECOMPILED_RUNTIME)
 #include "platform/assert.h"
 #include "vm/allocation.h"
@@ skipping 2517 matching lines @@
   DEFINE_CASTING_OPERATIONS(Name);
 
   virtual void AcceptVisitor(Visitor* visitor);
   virtual void VisitChildren(Visitor* visitor);
 
   String* string() { return string_; }
   Library* library() {
     if (library_reference_ == NULL) return NULL;
     return library_reference_->AsLibrary();
   }
+  CanonicalName* library_reference() { return library_reference_; }
 
  private:
   Name(String* string, CanonicalName* library_reference)
       : string_(string), library_reference_(library_reference) {}  // NOLINT
 
   Ref<String> string_;
   Ref<CanonicalName> library_reference_;
 
   DISALLOW_COPY_AND_ASSIGN(Name);
 };
@@ skipping 123 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(VoidType);
 };
 
 
 class InterfaceType : public DartType {
  public:
   static InterfaceType* ReadFrom(Reader* reader);
   static InterfaceType* ReadFrom(Reader* reader, bool _without_type_arguments_);
 
-  explicit InterfaceType(CanonicalName* klass_reference)
-      : klass_reference_(klass_reference) {}
+  explicit InterfaceType(CanonicalName* class_reference)
+      : class_reference_(class_reference) {}
   virtual ~InterfaceType();
 
   DEFINE_CASTING_OPERATIONS(InterfaceType);
 
   virtual void AcceptDartTypeVisitor(DartTypeVisitor* visitor);
   virtual void VisitChildren(Visitor* visitor);
 
-  Class* klass() { return klass_reference_->AsClass(); }
+  Class* klass() { return class_reference_->AsClass(); }
+  CanonicalName* class_reference() { return class_reference_; }
   List<DartType>& type_arguments() { return type_arguments_; }
 
  private:
   InterfaceType() {}
 
-  Ref<CanonicalName> klass_reference_;
+  Ref<CanonicalName> class_reference_;
   List<DartType> type_arguments_;
 
   DISALLOW_COPY_AND_ASSIGN(InterfaceType);
 };
 
 
 class FunctionType : public DartType {
  public:
   static FunctionType* ReadFrom(Reader* reader);
   static FunctionType* ReadFrom(Reader* reader, bool _without_type_arguments_);
@@ skipping 536 matching lines @@
 
 kernel::Program* ReadPrecompiledKernelFromBuffer(const uint8_t* buffer,
                                                  intptr_t buffer_length);
 
 
 
 }  // namespace dart
 
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)
 #endif  // RUNTIME_VM_KERNEL_H_