Remove proxies from --harmony switch for M38, because problems

test/mjsunit/harmony/proxies-example-membrane.js

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
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 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --harmony
+// Flags: --harmony --harmony-proxies
 
 
 // A simple no-op handler. Adapted from:
 // http://wiki.ecmascript.org/doku.php?id=harmony:proxies#examplea_no-op_forwarding_proxy
 
 function createHandler(obj) {
   return {
     getOwnPropertyDescriptor: function(name) {
       var desc = Object.getOwnPropertyDescriptor(obj, name);
       if (desc !== undefined) desc.configurable = true;
@@ skipping 464 matching lines @@
 assertThrows(function() { w[1] }, Error)
 assertThrows(function() { w.c }, Error)
 assertThrows(function() { wb.bb }, Error)
 assertEquals(3, wr.a)
 assertThrows(function() { wf(4) }, Error)
 assertEquals(6, wfx.a)
 assertEquals(7, wgx.aa)
 assertThrows(function() { wh4.q }, Error)
 assertThrows(function() { ws5.x }, Error)
 assertThrows(function() { ws5x.y }, Error)