[Interpreter] Add wide context slot load / store operations.

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 1926 matching lines @@
 
   Handle<Object> return_val = callable().ToHandleChecked();
   CHECK_EQ(Smi::cast(*return_val), Smi::FromInt(15));
 }
 
 
 TEST(InterpreterContextVariables) {
   HandleAndZoneScope handles;
   i::Isolate* isolate = handles.main_isolate();
 
-  std::pair<const char*, Handle<Object>> context_vars[] = {
+  std::ostringstream unique_vars;
+  for (int i = 0; i < 250; i++) {
+    unique_vars << "var a" << i << " = 0;";
+  }
+  std::pair<std::string, Handle<Object>> context_vars[] = {
       std::make_pair("var a; (function() { a = 1; })(); return a;",
                      handle(Smi::FromInt(1), isolate)),
       std::make_pair("var a = 10; (function() { a; })(); return a;",
                      handle(Smi::FromInt(10), isolate)),
       std::make_pair("var a = 20; var b = 30;\n"
                      "return (function() { return a + b; })();",
                      handle(Smi::FromInt(50), isolate)),
       std::make_pair("'use strict'; let a = 1;\n"
                      "{ let b = 2; return (function() { return a + b; })(); }",
                      handle(Smi::FromInt(3), isolate)),
       std::make_pair("'use strict'; let a = 10;\n"
                      "{ let b = 20; var c = function() { [a, b] };\n"
                      "  return a + b; }",
                      handle(Smi::FromInt(30), isolate)),
+      std::make_pair("'use strict';" + unique_vars.str() +
+                     "eval(); var b = 100; return b;",
+                     handle(Smi::FromInt(100), isolate)),
   };
 
   for (size_t i = 0; i < arraysize(context_vars); i++) {
-    std::string source(InterpreterTester::SourceForBody(context_vars[i].first));
+    std::string source(
+        InterpreterTester::SourceForBody(context_vars[i].first.c_str()));
     InterpreterTester tester(handles.main_isolate(), source.c_str());
     auto callable = tester.GetCallable<>();
 
     Handle<i::Object> return_value = callable().ToHandleChecked();
     CHECK(return_value->SameValue(*context_vars[i].second));
   }
 }
 
 
 TEST(InterpreterContextParameters) {
@@ skipping 1534 matching lines @@
     auto callable = tester.GetCallable<>();
 
     Handle<i::Object> return_value = callable().ToHandleChecked();
     CHECK(return_value->SameValue(*eval_global[i].second));
   }
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8