[generators] Replace some runtime functions with Turbofan JS operators.

src/compiler/js-operator.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_JS_OPERATOR_H_
 #define V8_COMPILER_JS_OPERATOR_H_
 
 #include "src/compiler/type-hints.h"
 #include "src/runtime/runtime.h"
 
@@ skipping 452 matching lines @@
   const Operator* InstanceOf();
 
   const Operator* ForInDone();
   const Operator* ForInNext();
   const Operator* ForInPrepare();
   const Operator* ForInStep();
 
   const Operator* LoadMessage();
   const Operator* StoreMessage();
 
+  // Used to implement Ignition's SuspendGenerator bytecode.
+  const Operator* GeneratorStore(int register_count);
+
+  // Used to implement Ignition's ResumeGenerator bytecode.
+  const Operator* GeneratorRestoreContinuation();
+  const Operator* GeneratorRestoreRegister(int index);
+
   const Operator* StackCheck();
 
   const Operator* CreateFunctionContext(int slot_count);
   const Operator* CreateCatchContext(const Handle<String>& name);
   const Operator* CreateWithContext();
   const Operator* CreateBlockContext(const Handle<ScopeInfo>& scpope_info);
   const Operator* CreateModuleContext();
   const Operator* CreateScriptContext(const Handle<ScopeInfo>& scpope_info);
 
  private:
   Zone* zone() const { return zone_; }
 
   const JSOperatorGlobalCache& cache_;
   Zone* const zone_;
 
   DISALLOW_COPY_AND_ASSIGN(JSOperatorBuilder);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_JS_OPERATOR_H_