[Interpreter] Add CallRuntime support to the interpreter.

test/cctest/interpreter/test-interpreter.cc

Index: test/cctest/interpreter/test-interpreter.cc
diff --git a/test/cctest/interpreter/test-interpreter.cc b/test/cctest/interpreter/test-interpreter.cc
index deeb0baafd978e3f175639af8ccc47575ab8af13..d87f244318af3704fe3421e617976e7e4db33219 100644
--- a/test/cctest/interpreter/test-interpreter.cc
+++ b/test/cctest/interpreter/test-interpreter.cc
@@ -1289,3 +1289,25 @@ TEST(InterpreterTestIn) {
     CHECK_EQ(return_value->BooleanValue(), expected_value);
   }
 }
+
+
+TEST(InterpreterCallRuntime) {
+  HandleAndZoneScope handles;
+
+  BytecodeArrayBuilder builder(handles.main_isolate(), handles.main_zone());
+  builder.set_locals_count(2);
+  builder.set_parameter_count(1);
+  builder.LoadLiteral(Smi::FromInt(15))
+      .StoreAccumulatorInRegister(Register(0))
+      .LoadLiteral(Smi::FromInt(40))
+      .StoreAccumulatorInRegister(Register(1))
+      .CallRuntime(Runtime::kAdd, Register(0), 2)
+      .Return();
+  Handle<BytecodeArray> bytecode_array = builder.ToBytecodeArray();
+
+  InterpreterTester tester(handles.main_isolate(), bytecode_array);
+  auto callable = tester.GetCallable<>();
+
+  Handle<Object> return_val = callable().ToHandleChecked();
+  CHECK_EQ(Smi::cast(*return_val), Smi::FromInt(55));
+}