DevTools: Console object preview should not be lossless if it has accessors.

LayoutTests/inspector/console/console-format-expected.txt

 CONSOLE MESSAGE: line 26: test,test2,,,test4,,,,,
 CONSOLE MESSAGE: line 27: %o
 CONSOLE MESSAGE: line 28: %O
 CONSOLE MESSAGE: line 29: Test for zero "%f" in formatter
 CONSOLE MESSAGE: line 12: /^url\(\s*(?:(?:"(?:[^\\\"]|(?:\\[\da-f]{1,6}\s?|\.))*"|'(?:[^\\\']|(?:\\[\da-f]{1,6}\s?|\.))*')|(?:[!#$%&*-~\w]|(?:\\[\da-f]{1,6}\s?|\.))*)\s*\)/i
 CONSOLE MESSAGE: line 13: /^url\(\s*(?:(?:"(?:[^\\\"]|(?:\\[\da-f]{1,6}\s?|\.))*"|'(?:[^\\\']|(?:\\[\da-f]{1,6}\s?|\.))*')|(?:[!#$%&*-~\w]|(?:\\[\da-f]{1,6}\s?|\.))*)\s*\)/i
 CONSOLE MESSAGE: line 12: /foo\\bar\sbaz/i
 CONSOLE MESSAGE: line 13: /foo\\bar\sbaz/i
 CONSOLE MESSAGE: line 12: test
 CONSOLE MESSAGE: line 13: test
@@ skipping 71 matching lines @@
 globals[1]
 /foo\\bar\sbaz/i
 test console-format.html:12
 ["test"] console-format.html:13
 globals[2]
 "test"
 test named "test" console-format.html:12
 ["test named "test""] console-format.html:13
 globals[3]
 "test named "test""
-Error {stack: (...)} console-format.html:12
+Error {stack: (...)}stack: (...)get stack: function () { [native code] }set stack: function () { [native code] }__proto__: d console-format.html:12
 [Error]0: Errorlength: 1__proto__: Array[0] console-format.html:13
 globals[4]
-Error {stack: (...)}
-Error {stack: (...), message: "my error message"} console-format.html:12
+Error {stack: (...)}stack: (...)get stack: function () { [native code] }set stack: function () { [native code] }__proto__: d
+Error {stack: (...), message: "my error message"}message: "my error message"stack: (...)get stack: function () { [native code] }set stack: function () { [native code] }__proto__: d console-format.html:12
 [Error]0: Errorlength: 1__proto__: Array[0] console-format.html:13
 globals[5]
-Error {stack: (...), message: "my error message"}
+Error {stack: (...), message: "my error message"}message: "my error message"stack: (...)get stack: function () { [native code] }set stack: function () { [native code] }__proto__: d
 <p id="p">Tests that console logging dumps proper messages.</p> console-format.html:12
 [p#p]0: p#plength: 1__proto__: Array[0] console-format.html:13
 globals[6]
 <p id="p">Tests that console logging dumps proper messages.</p>
 function () { return 1; } console-format.html:12
 [function]0: function () { return 1; }length: 1__proto__: Array[0] console-format.html:13
 globals[7]
 function () { return 1; } console-format.html:38
 function () {
         return 2;
@@ skipping 25 matching lines @@
 globals[13]
 attr=""
 attr="value""value" console-format.html:12
 [attr]0: attrlength: 1__proto__: Array[0] console-format.html:13
 globals[14]
 attr="value""value"
 id="x""x" console-format.html:12
 [id]0: idlength: 1__proto__: Array[0] console-format.html:13
 globals[15]
 id="x""x"
-Object {length: (...)} console-format.html:12
+Object {length: (...)}length: (...)get length: function length() { throw "Length called"; }__proto__: Object console-format.html:12
 [Object]0: Objectlength: 1__proto__: Array[0] console-format.html:13
 globals[16]
-Object {length: (...)}
+Object {length: (...)}length: (...)get length: function length() { throw "Length called"; }__proto__: Object
 NaN console-format.html:12
 [NaN] console-format.html:13
 globals[17]
 NaN
 Infinity console-format.html:12
 [Infinity] console-format.html:13
 globals[18]
 Infinity
 -Infinity console-format.html:12
 [-Infinity] console-format.html:13
@@ skipping 12 matching lines @@
 globals[22]
 [function () {}]
 Object {bar: "bar", foo: "foo"} console-format.html:12
 [Object]0: Objectlength: 1__proto__: Array[0] console-format.html:13
 globals[23]
 Object {bar: "bar", foo: "foo"}
 <svg id="svg-node"></svg> console-format.html:12
 [svg#svg-node]0: svg#svg-nodelength: 1__proto__: Array[0] console-format.html:13
 globals[24]
 <svg id="svg-node"></svg>
-Object {bar: (...), foo: 1} console-format.html:12
+Object {bar: (...), foo: 1}bar: (...)get bar: function () { return this.bar; }set bar: function (x) { this.bar = x; }getFoo: function () { return this.foo; }__proto__: Object console-format.html:12
 [Object]0: Objectlength: 1__proto__: Array[0] console-format.html:13
 globals[25]
-Object {bar: (...), foo: 1}
+Object {bar: (...), foo: 1}bar: (...)get bar: function () { return this.bar; }set bar: function (x) { this.bar = x; }getFoo: function () { return this.foo; }__proto__: Object
 -0 console-format.html:12
 [-0] console-format.html:13
 globals[26]
 -0
 Object {} console-format.html:12
 [Object]0: Objectlength: 1__proto__: Array[0] console-format.html:13
 globals[27]
 Object {}
 function Object() { [native code] } console-format.html:12
 [function]0: function Object() { [native code] }length: 1__proto__: Array[0] console-format.html:13
 globals[28]
 function Object() { [native code] }
 Object {} console-format.html:12
 [Object]0: Objectlength: 1__proto__: Array[0] console-format.html:13
 globals[29]
 Object {}