DevTools: Simplify isArrayLike() in injected script and extend InjectedScriptHost.type()

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 9f58f9d06a49deecb211d20718a5f0034f3185c5..3db4d8f0af5c237052288ef96cea7c08b7f3ee68 100644
--- a/Source/core/inspector/InjectedScriptSource.js
+++ b/Source/core/inspector/InjectedScriptSource.js
@@ -152,11 +152,7 @@ function isArrayLike(obj)
         if (typeof obj.splice === "function")
             return isFinite(obj.length);
         var str = InjectedScriptHost.callFunction(Object.prototype.toString, obj);
-        if (str === "[object Array]" ||
-            str === "[object Arguments]" ||
-            str === "[object HTMLCollection]" ||
-            str === "[object NodeList]" ||
-            str === "[object DOMTokenList]")
+        if (str === "[object Arguments]")
             return isFinite(obj.length);
     } catch (e) {
     }
@@ -982,9 +978,6 @@ InjectedScript.prototype = {
         if (this.isPrimitiveValue(obj))
             return null;
 
-        if (this._isHTMLAllCollection(obj))
-            return "array";
-
         var preciseType = InjectedScriptHost.type(obj);
         if (preciseType)
             return preciseType;
@@ -1039,7 +1032,7 @@ InjectedScript.prototype = {
         if (typeof obj === "function")
             return toString(obj);
 
-        if (isSymbol(obj)) {
+        if (subtype === "symbol") {
             try {
                 return InjectedScriptHost.callFunction(Symbol.prototype.toString, obj) || "Symbol";
             } catch (e) {