[inspector] better isArrayLike for injected-script-source.js

src/inspector/injected_script_externs.js

Index: src/inspector/injected_script_externs.js
diff --git a/src/inspector/injected_script_externs.js b/src/inspector/injected_script_externs.js
index 14b14e6bbf8c89969ffb7cda1fe6c3bf5e4d4446..20e4d24e9c84a1a4865cd941cb65046783aa14e4 100644
--- a/src/inspector/injected_script_externs.js
+++ b/src/inspector/injected_script_externs.js
@@ -14,6 +14,13 @@ InjectedScriptHostClass.prototype.nullifyPrototype = function(obj) {}
 
 /**
  * @param {*} obj
+ * @param {string} name
+ * @return {*}
+ */
+InjectedScriptHostClass.prototype.getProperty = function(obj, name) {}
+
+/**
+ * @param {*} obj
  * @return {string}
  */
 InjectedScriptHostClass.prototype.internalConstructorName = function(obj) {}