Show all object property symbols after all its property names.

BUG=376194

Review URL: https://codereview.chromium.org/337753004

git-svn-id: svn://svn.chromium.org/blink/trunk@176215 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/inspector/console/console-dir-es6-expected.txt

@@ -3,11 +3,11 @@ CONSOLE MESSAGE: line 18:
 Tests that console logging dumps proper messages.
 
 Object
+    a: 1
     Symbol(): 2
     Symbol(Symbol.iterator): Symbol(foo)
     Symbol(a): 3
     Symbol(a): Symbol(Symbol.iterator)
-    a: 1
     __proto__: Object console-dir-es6.html:15
 Symbol() console-dir-es6.html:18
 

third_party/WebKit/LayoutTests/inspector/console/console-format-es6-expected.txt

@@ -20,8 +20,8 @@ Symbol(a) console-format-es6.html:11
 [Symbol(a)]0: Symbol(a)length: 1__proto__: Array[0] console-format-es6.html:12
 globals[2]
 Symbol(a)
-Object {a: Symbol(), Symbol(): 1, Symbol(a): 2}Symbol(): 1Symbol(a): 2a: Symbol()__proto__: Object console-format-es6.html:11
+Object {a: Symbol(), Symbol(): 1, Symbol(a): 2}a: Symbol()Symbol(): 1Symbol(a): 2__proto__: Object console-format-es6.html:11
 [Object]0: Objectlength: 1__proto__: Array[0] console-format-es6.html:12
 globals[3]
-Object {a: Symbol(), Symbol(): 1, Symbol(a): 2}Symbol(): 1Symbol(a): 2a: Symbol()__proto__: Object
+Object {a: Symbol(), Symbol(): 1, Symbol(a): 2}a: Symbol()Symbol(): 1Symbol(a): 2__proto__: Object
 

third_party/WebKit/Source/devtools/front_end/components/ObjectPropertiesSection.js

@@ -138,6 +138,10 @@ WebInspector.ObjectPropertiesSection.CompareProperties = function(propertyA, pro
         return 1;
     if (b === "__proto__")
         return -1;
+    if (propertyA.symbol && !propertyB.symbol)
+        return 1;
+    if (propertyB.symbol && !propertyA.symbol)
+        return -1;
     return String.naturalOrderComparator(a, b);
 }