Faster checks in polymorphic instance calls if Smi-s are involved

runtime/vm/flow_graph_compiler.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_H_
 #define VM_FLOW_GRAPH_COMPILER_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 #include "vm/code_descriptors.h"
@@ skipping 396 matching lines @@
                         intptr_t token_pos,
                         LocationSummary* locs);
 
   void EmitMegamorphicInstanceCall(const ICData& ic_data,
                                    intptr_t argument_count,
                                    intptr_t deopt_id,
                                    intptr_t token_pos,
                                    LocationSummary* locs);
 
   void EmitTestAndCall(const ICData& ic_data,
-                       Register class_id_reg,
                        intptr_t arg_count,
                        const Array& arg_names,
-                       Label* deopt,
+                       Label* failed,
+                       Label* match_found,
                        intptr_t deopt_id,
                        intptr_t token_index,
                        LocationSummary* locs);
 
   Condition EmitEqualityRegConstCompare(Register reg,
                                         const Object& obj,
                                         bool needs_number_check,
                                         intptr_t token_pos);
   Condition EmitEqualityRegRegCompare(Register left,
                                       Register right,
@@ skipping 279 matching lines @@
   Array& inlined_code_intervals_;
   const GrowableArray<const Function*>& inline_id_to_function_;
   const GrowableArray<intptr_t>& caller_inline_id_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_H_