Revert of [intrinsic] Drop the %_ValueOf intrinsic.

test/cctest/compiler/test-run-intrinsics.cc

Index: test/cctest/compiler/test-run-intrinsics.cc
diff --git a/test/cctest/compiler/test-run-intrinsics.cc b/test/cctest/compiler/test-run-intrinsics.cc
index 681891c91f522e4d9525ebf9f99f641cc60e863a..0ea611bade79a9f1e7f2d438aaec6cb610170e85 100644
--- a/test/cctest/compiler/test-run-intrinsics.cc
+++ b/test/cctest/compiler/test-run-intrinsics.cc
@@ -156,6 +156,16 @@
   T.CheckCall(T.Val("aaa"), T.Val("aaa"), T.Val(0.0));
 }
 
+
+TEST(ValueOf) {
+  FunctionTester T("(function(a) { return %_ValueOf(a); })", flags);
+
+  T.CheckCall(T.Val("a"), T.Val("a"));
+  T.CheckCall(T.Val("b"), T.NewObject("(new String('b'))"));
+  T.CheckCall(T.Val(123), T.Val(123));
+  T.CheckCall(T.Val(456), T.NewObject("(new Number(456))"));
+}
+
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8