DevTools: Fix console.log for arrays in some corner cases.

Source/core/inspector/InjectedScriptSource.js

Index: Source/core/inspector/InjectedScriptSource.js
diff --git a/Source/core/inspector/InjectedScriptSource.js b/Source/core/inspector/InjectedScriptSource.js
index f19222580644d20339a30fabdfe6b4d83301d94a..e63edab3f577d8fb751d991f9aef0ebfa039b8e3 100644
--- a/Source/core/inspector/InjectedScriptSource.js
+++ b/Source/core/inspector/InjectedScriptSource.js
@@ -110,6 +110,17 @@ function nullifyObjectProto(obj)
 }
 
 /**
+ * @param {string} name
+ * @return {boolean}
+ */
+function isArrayIndexPropertyName(name)
+{
+    // Array index check according to the ES5-15.4.
+    var index = name >>> 0;
+    return toString(index) === name && index !== 0xffffffff;
+}
+
+/**
  * @constructor
  */
 var InjectedScript = function()
@@ -1012,8 +1023,9 @@ InjectedScript.RemoteObject.prototype = {
                     descriptors.push(nameToDescriptors["#" + firstLevelKeys[i]]);
             }
 
+            var isArray = (this.subtype === "array");
             for (var i = 0; i < descriptors.length; ++i) {
-                if (propertiesThreshold.indexes < 0 || propertiesThreshold.properties < 0)
+                if (propertiesThreshold.indexes < 0 && propertiesThreshold.properties < 0)
                     break;
 
                 var descriptor = descriptors[i];
@@ -1023,13 +1035,15 @@ InjectedScript.RemoteObject.prototype = {
                     preview.lossless = false;
                     continue;
                 }
-                if (!descriptor.enumerable && !descriptor.isOwn)
-                    continue;
 
                 var name = descriptor.name;
                 if (name === "__proto__")
                     continue;
-                if (this.subtype === "array" && name === "length")
+                if (isArray && name === "length")
+                    continue;
+
+                var isArrayIndex = isArray && isArrayIndexPropertyName(name);
+                if (!descriptor.enumerable && !descriptor.isOwn && !isArrayIndex)
                     continue;
 
                 if (!("value" in descriptor)) {
@@ -1097,11 +1111,12 @@ InjectedScript.RemoteObject.prototype = {
      */
     _appendPropertyPreview: function(preview, property, propertiesThreshold)
     {
-        if (toString(property.name >>> 0) === property.name)
-            propertiesThreshold.indexes--;
+        var threshold;
+        if (isArrayIndexPropertyName(property.name))
+            threshold = --propertiesThreshold.indexes;
         else
-            propertiesThreshold.properties--;
-        if (propertiesThreshold.indexes < 0 || propertiesThreshold.properties < 0) {
+            threshold = --propertiesThreshold.properties;
+        if (threshold < 0) {
             preview.overflow = true;
             preview.lossless = false;
         } else {