[builtins] Introduce a proper BUILTIN frame type.

test/mjsunit/regress/regress-4815.js

Index: test/mjsunit/regress/regress-4815.js
diff --git a/test/mjsunit/regress/regress-4815.js b/test/mjsunit/regress/regress-4815.js
new file mode 100644
index 0000000000000000000000000000000000000000..cc0e7555edcde32985ef90b379656154ece267c9
--- /dev/null
+++ b/test/mjsunit/regress/regress-4815.js
@@ -0,0 +1,20 @@
+// Copyright 2016 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.
+
+var thrower = { [Symbol.toPrimitive]: () => FAIL };
+
+// Tests that a native conversion function is included in the
+// stack trace.
+function testTraceNativeConversion(nativeFunc) {
+  var nativeFuncName = nativeFunc.name;
+  try {
+    nativeFunc(thrower);
+    assertUnreachable(nativeFuncName);
+  } catch (e) {
+    assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName);
+  }
+}
+
+testTraceNativeConversion(Math.max);
+testTraceNativeConversion(Math.min);