[Interpreter] Add support for RegExp literals.

test/cctest/interpreter/test-interpreter.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.
 
 #include "src/v8.h"
 
 #include "src/execution.h"
 #include "src/handles.h"
 #include "src/interpreter/bytecode-array-builder.h"
 #include "src/interpreter/interpreter.h"
@@ skipping 1626 matching lines @@
       "}");
   InterpreterTester tester(handles.main_isolate(), source.c_str());
   auto callable = tester.GetCallable<Handle<Object>>();
 
   Handle<i::Object> return_val = callable(
       Handle<Smi>(Smi::FromInt(3), handles.main_isolate())).ToHandleChecked();
   CHECK_EQ(Smi::cast(*return_val), Smi::FromInt(5));
 }
 
 
+TEST(InterpreterRegExpLiterals) {
+  HandleAndZoneScope handles;
+  i::Isolate* isolate = handles.main_isolate();
+  i::Factory* factory = isolate->factory();
+
+  std::pair<const char*, Handle<Object>> literals[5] = {
+      std::make_pair("return /abd/.exec('cccabbdd');\n",
+                     factory->null_value()),
+      std::make_pair("return /ab+d/.exec('cccabbdd')[0];\n",
+                     factory->NewStringFromStaticChars("abbd")),
+      std::make_pair("return /AbC/i.exec('ssaBC')[0];\n",
+                     factory->NewStringFromStaticChars("aBC")),
+      std::make_pair("return 'ssaBC'.match(/AbC/i)[0];\n",
+                     factory->NewStringFromStaticChars("aBC")),
+      std::make_pair("return 'ssaBCtAbC'.match(/(AbC)/gi)[1];\n",
+                     factory->NewStringFromStaticChars("AbC")),
+  };
+
+  for (size_t i = 0; i < arraysize(literals); i++) {
+    std::string source(InterpreterTester::SourceForBody(literals[i].first));
+    InterpreterTester tester(handles.main_isolate(), source.c_str());
+    auto callable = tester.GetCallable<>();
+
+    Handle<i::Object> return_value = callable().ToHandleChecked();
+    CHECK(return_value->SameValue(*literals[i].second));
+  }
+}
+
+
 TEST(InterpreterArrayLiterals) {
   HandleAndZoneScope handles;
   i::Isolate* isolate = handles.main_isolate();
   i::Factory* factory = isolate->factory();
 
   std::pair<const char*, Handle<Object>> literals[6] = {
       std::make_pair("return [][0];\n",
                      factory->undefined_value()),
       std::make_pair("return [1, 3, 2][1];\n",
                      Handle<Object>(Smi::FromInt(3), isolate)),
@@ skipping 176 matching lines @@
 
   // TODO(rmcilroy): modify tests when we have real try finally support.
   std::string source(InterpreterTester::SourceForBody(
       "var a = 1; try { a = a + 1; } finally { a = a + 2; }; return a;"));
   InterpreterTester tester(handles.main_isolate(), source.c_str());
   auto callable = tester.GetCallable<>();
 
   Handle<Object> return_val = callable().ToHandleChecked();
   CHECK_EQ(Smi::cast(*return_val), Smi::FromInt(4));
 }