[interpreter, debugger] implement debugger statement.

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

Index: test/unittests/interpreter/bytecode-array-iterator-unittest.cc
diff --git a/test/unittests/interpreter/bytecode-array-iterator-unittest.cc b/test/unittests/interpreter/bytecode-array-iterator-unittest.cc
index 657a7ddb6b732dd3c2a87bb84ab0aab2a08202c2..003a91c3c40b6bb14e18673418232619ed80a858 100644
--- a/test/unittests/interpreter/bytecode-array-iterator-unittest.cc
+++ b/test/unittests/interpreter/bytecode-array-iterator-unittest.cc
@@ -45,6 +45,7 @@ TEST_F(BytecodeArrayIteratorTest, IteratesBytecodeArray) {
       .LoadNamedProperty(reg_1, name, feedback_slot, LanguageMode::SLOPPY)
       .StoreAccumulatorInRegister(reg_2)
       .CallRuntime(Runtime::kLoadIC_Miss, reg_0, 1)
+      .Debugger()
       .Return();
 
   // Test iterator sees the expected output from the builder.
@@ -98,6 +99,10 @@ TEST_F(BytecodeArrayIteratorTest, IteratesBytecodeArray) {
   CHECK(!iterator.done());
   iterator.Advance();
 
+  CHECK_EQ(iterator.current_bytecode(), Bytecode::kDebugger);
+  CHECK(!iterator.done());
+  iterator.Advance();
+
   CHECK_EQ(iterator.current_bytecode(), Bytecode::kReturn);
   CHECK(!iterator.done());
   iterator.Advance();