Started porting inlined type checks to x64 (will be the future pattern for other architectures).

runtime/vm/flow_graph_compiler_x64.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 VM_FLOW_GRAPH_COMPILER_X64_H_
 #define VM_FLOW_GRAPH_COMPILER_X64_H_
 
 #ifndef VM_FLOW_GRAPH_COMPILER_H_
 #error Include flow_graph_compiler.h instead of flow_graph_compiler_x64.h.
 #endif
@@ skipping 99 matching lines @@
                     PcDescriptors::Kind kind);
   void GenerateCallRuntime(intptr_t cid,
                            intptr_t token_index,
                            intptr_t try_index,
                            const RuntimeEntry& entry);
   void AddCurrentDescriptor(PcDescriptors::Kind kind,
                             intptr_t cid,
                             intptr_t token_index,
                             intptr_t try_index);
 
+  // Type checking helper methods.
+  void CheckClasses(const GrowableArray<const Class*>& classes,
+                    Label* is_instance_lbl,
+                    Label* is_not_instance_lbl);
   RawSubtypeTestCache* GenerateInlineInstanceof(intptr_t cid,
                                                 intptr_t token_index,
                                                 const AbstractType& type,
                                                 Label* is_instance,
                                                 Label* is_not_instance);
 
+  RawSubtypeTestCache* GenerateInstantiatedTypeWithArgumentsTest(
+      intptr_t cid,
+      intptr_t token_index,
+      const AbstractType& dst_type,
+      Label* is_instance_lbl,
+      Label* is_not_instance_lbl);
+
+  void GenerateInstantiatedTypeNoArgumentsTest(intptr_t cid,
+                                               intptr_t token_index,
+                                               const AbstractType& dst_type,
+                                               Label* is_instance_lbl,
+                                               Label* is_not_instance_lbl);
+
+  RawSubtypeTestCache* GenerateUninstantiatedTypeTest(
+      const AbstractType& dst_type,
+      intptr_t cid,
+      intptr_t token_index,
+      Label* is_instance_lbl,
+      Label* is_not_instance_label);
+
+  RawSubtypeTestCache* GenerateSubtype1TestCacheLookup(
+      intptr_t cid,
+      intptr_t token_index,
+      const Class& type_class,
+      Label* is_instance_lbl,
+      Label* is_not_instance_lbl);
+
   void GenerateAssertAssignable(intptr_t cid,
                                 intptr_t token_index,
                                 intptr_t try_index,
                                 const AbstractType& dst_type,
                                 const String& dst_name);
 
   void GenerateInstanceOf(intptr_t cid,
                           intptr_t token_index,
                           intptr_t try_index,
                           const AbstractType& type,
@@ skipping 19 matching lines @@
   DescriptorList* pc_descriptors_list_;
   ExceptionHandlerList* exception_handlers_list_;
   const bool is_optimizing_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_X64_H_