Implement dummy getOwnPropertyNames and enumerate traps.

tests/wpt/metadata/dom/nodes/Document-getElementsByTagName.html.ini

@@ -1,3 +1,8 @@
 [Document-getElementsByTagName.html]
   type: testharness
-  expected: CRASH
+  [Shouldn\'t be able to set unsigned properties on a HTMLCollection (strict mode)]
+    expected: FAIL
+
+  [hasOwnProperty, getOwnPropertyDescriptor, getOwnPropertyNames]
+    expected: FAIL
+

tests/wpt/metadata/dom/nodes/Element-children.html.ini

@@ -1,3 +1,5 @@
 [Element-children.html]
   type: testharness
-  expected: CRASH
+  [HTMLCollection edge cases 1]
+    expected: FAIL
+

tests/wpt/metadata/dom/nodes/Element-getElementsByTagName.html.ini

@@ -1,3 +1,8 @@
 [Element-getElementsByTagName.html]
   type: testharness
-  expected: CRASH
+  [Shouldn\'t be able to set unsigned properties on a HTMLCollection (strict mode)]
+    expected: FAIL
+
+  [hasOwnProperty, getOwnPropertyDescriptor, getOwnPropertyNames]
+    expected: FAIL
+

tests/wpt/metadata/html/dom/documents/dom-tree-accessors/document.forms.html.ini

@@ -1,3 +1,11 @@
 [document.forms.html]
   type: testharness
-  expected: CRASH
+  [document.forms]
+    expected: FAIL
+
+  [document.forms iteration]
+    expected: FAIL
+
+  [document.forms getOwnPropertyNames]
+    expected: FAIL
+

tests/wpt/metadata/html/dom/elements/global-attributes/dataset-enumeration.html.ini

@@ -1,3 +1,8 @@
 [dataset-enumeration.html]
   type: testharness
-  expected: CRASH
+  [A dataset should be enumeratable.]
+    expected: FAIL
+
+  [Only attributes who qualify as dataset properties should be enumeratable in the dataset.]
+    expected: FAIL
+

tests/wpt/metadata/html/dom/elements/global-attributes/dataset-get.html.ini

@@ -1,3 +1,5 @@
 [dataset-get.html]
   type: testharness
-  expected: CRASH
+  [Getting element.dataset[\'toString\'\] should return the value of element.getAttribute(\'data-to-string\')\']
+    expected: FAIL
+