Reland "[Interpreter] Add CreateClosure to BytecodeGraphBuilder."

test/cctest/compiler/test-run-bytecode-graph-builder.cc

 // Copyright 2015 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.
 
 // TODO(jochen): Remove this after the setting is turned on globally.
 #define V8_IMMINENT_DEPRECATION_WARNINGS
 
 #include <utility>
 
 #include "src/compiler/pipeline.h"
@@ skipping 557 matching lines @@
   size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
   for (size_t i = 0; i < num_snippets; i++) {
     BytecodeGraphTester tester(isolate, zone, snippets[i].code_snippet);
     auto callable = tester.GetCallable<>();
     Handle<Object> return_value = callable().ToHandleChecked();
     CHECK(return_value->SameValue(*snippets[i].return_value()));
   }
 }
 
 
+TEST(BytecodeGraphBuilderCreateClosure) {
+  HandleAndZoneScope scope;
+  Isolate* isolate = scope.main_isolate();
+  Zone* zone = scope.main_zone();
+  Factory* factory = isolate->factory();
+
+  ExpectedSnippet<0> snippets[] = {
+      {"function f() {\n"
+       "  function counter() { this.count = 20; }\n"
+       "  var c = new counter();\n"
+       "  return c.count;\n"
+       "}; f()",
+       {factory->NewNumberFromInt(20)}},
+      {"function f() {\n"
+       "  function counter(arg0) { this.count = 17; this.x = arg0; }\n"
+       "  var c = new counter(6);\n"
+       "  return c.count + c.x;\n"
+       "}; f()",
+       {factory->NewNumberFromInt(23)}},
+      {"function f() {\n"
+       "  function counter(arg0, arg1) {\n"
+       "    this.count = 17; this.x = arg0; this.y = arg1;\n"
+       "  }\n"
+       "  var c = new counter(3, 5);\n"
+       "  return c.count + c.x + c.y;\n"
+       "}; f()",
+       {factory->NewNumberFromInt(25)}},
+  };
+
+  size_t num_snippets = sizeof(snippets) / sizeof(snippets[0]);
+  for (size_t i = 0; i < num_snippets; i++) {
+    BytecodeGraphTester tester(isolate, zone, snippets[i].code_snippet);
+    auto callable = tester.GetCallable<>();
+    Handle<Object> return_value = callable().ToHandleChecked();
+    CHECK(return_value->SameValue(*snippets[i].return_value()));
+  }
+}
+
+
 TEST(BytecodeGraphBuilderCallRuntime) {
   HandleAndZoneScope scope;
   Isolate* isolate = scope.main_isolate();
   Zone* zone = scope.main_zone();
   Factory* factory = isolate->factory();
 
   ExpectedSnippet<1> snippets[] = {
       {"function f(arg0) { return %MaxSmi(); }\nf()",
        {factory->NewNumberFromInt(Smi::kMaxValue), factory->undefined_value()}},
       {"function f(arg0) { return %IsArray(arg0) }\nf(undefined)",
@@ skipping 170 matching lines @@
     auto callable = tester.GetCallable<Handle<Object>>();
     Handle<Object> return_value =
         callable(snippets[i].parameter(0)).ToHandleChecked();
     CHECK(return_value->SameValue(*snippets[i].return_value()));
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8