[inspector] description for weak collections should not contain size

src/inspector/injected-script-source.js

Index: src/inspector/injected-script-source.js
diff --git a/src/inspector/injected-script-source.js b/src/inspector/injected-script-source.js
index cc85c0b7f03ff378dc613cab59abced3a3badc31..0e305826c02bd2a1b5b03d8e00d7e3b78270cedd 100644
--- a/src/inspector/injected-script-source.js
+++ b/src/inspector/injected-script-source.js
@@ -917,7 +917,7 @@ InjectedScript.RemoteObject.prototype = {
             }
             this._appendPropertyPreviewDescriptors(preview, descriptors, secondLevelKeys, isTable);
 
-            if (subtype === "map" || subtype === "set" || subtype === "iterator")
+            if (subtype === "map" || subtype === "set" || subtype === "weakmap" || subtype === "weakset" || subtype === "iterator")
                 this._appendEntriesPreview(entries, preview, skipEntriesPreview);
 
         } catch (e) {}