Save/restore only live registers in the generator suspend/resume.

test/unittests/interpreter/bytecode-array-builder-unittest.cc

 // Copyright 2014 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.
 
 #include "src/v8.h"
 
 #include "src/ast/scopes.h"
 #include "src/interpreter/bytecode-array-builder.h"
 #include "src/interpreter/bytecode-array-iterator.h"
 #include "src/interpreter/bytecode-jump-table.h"
@@ skipping 340 matching lines @@
 
   // Emit load and store operations for module variables.
   builder.LoadModuleVariable(-1, 42)
       .LoadModuleVariable(0, 42)
       .LoadModuleVariable(1, 42)
       .StoreModuleVariable(-1, 42)
       .StoreModuleVariable(0, 42)
       .StoreModuleVariable(1, 42);
 
   // Emit generator operations.
-  builder.SuspendGenerator(reg, SuspendFlags::kYield).ResumeGenerator(reg);
+  builder.SuspendGenerator(reg, reg_list, SuspendFlags::kYield)
+      .RestoreGeneratorState(reg)
+      .RestoreGeneratorRegisters(reg, reg_list);
 
   // Intrinsics handled by the interpreter.
   builder.CallRuntime(Runtime::kInlineIsArray, reg_list);
 
   // Emit debugger bytecode.
   builder.Debugger();
 
   // Insert dummy ops to force longer jumps.
   for (int i = 0; i < 256; i++) {
     builder.Debugger();
@@ skipping 456 matching lines @@
     iterator.Advance();
   }
   CHECK_EQ(iterator.current_bytecode(), Bytecode::kReturn);
   iterator.Advance();
   CHECK(iterator.done());
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8