[turbofan] Properly type field access to stable heap object maps.

test/cctest/compiler/function-tester.h

 // Copyright 2014 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.
 
 #ifndef V8_CCTEST_COMPILER_FUNCTION_TESTER_H_
 #define V8_CCTEST_COMPILER_FUNCTION_TESTER_H_
 
 #include "src/v8.h"
 #include "test/cctest/cctest.h"
 
@@ skipping 158 matching lines @@
     }
     if (flags_ & CompilationInfo::kTypingEnabled) {
       info.MarkAsTypingEnabled();
     }
     CHECK(Compiler::Analyze(info.parse_info()));
     CHECK(Compiler::EnsureDeoptimizationSupport(&info));
 
     Pipeline pipeline(&info);
     Handle<Code> code = pipeline.GenerateCode();
     CHECK(!code.is_null());
+    info.dependencies()->Commit(code);
     info.context()->native_context()->AddOptimizedCode(*code);
     function->ReplaceCode(*code);
     return function;
   }
 
   static Handle<JSFunction> ForMachineGraph(Graph* graph) {
     JSFunction* p = NULL;
     {  // because of the implicit handle scope of FunctionTester.
       FunctionTester f(graph);
       p = *f.function;
@@ skipping 21 matching lines @@
     CHECK(!code.is_null());
     function->ReplaceCode(*code);
     return function;
   }
 };
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CCTEST_COMPILER_FUNCTION_TESTER_H_