VM: Add smi fast path operations for precompiled code

runtime/vm/aot_optimizer.h

Index: runtime/vm/aot_optimizer.h
diff --git a/runtime/vm/aot_optimizer.h b/runtime/vm/aot_optimizer.h
index 3d1ed1bded001ad9d4ca5dd74286423f8649ded9..9184b314045cd9382855a9e72001431924653f97 100644
--- a/runtime/vm/aot_optimizer.h
+++ b/runtime/vm/aot_optimizer.h
@@ -67,7 +67,6 @@ class AotOptimizer : public FlowGraphVisitor {
 
   bool TryReplaceWithIndexedOp(InstanceCallInstr* call);
 
-
   bool TryReplaceWithBinaryOp(InstanceCallInstr* call, Token::Kind op_kind);
   bool TryReplaceWithUnaryOp(InstanceCallInstr* call, Token::Kind op_kind);
 
@@ -159,8 +158,6 @@ class AotOptimizer : public FlowGraphVisitor {
                                        Representation rep, intptr_t cid);
   bool TryStringLengthOneEquality(InstanceCallInstr* call, Token::Kind op_kind);
 
-  void InstanceCallNoopt(InstanceCallInstr* instr);
-
   RawField* GetField(intptr_t class_id, const String& field_name);
 
   Thread* thread() const { return flow_graph_->thread(); }