lib: add new globals from Node.js 15.x (#997)

Co-authored-by: Richard Lau <rlau@redhat.com>
Co-authored-by: Gil Pedersen <git@gpost.dk>

Author: 3 people

lib/modules/leaks.js

@@ -13,6 +13,9 @@ const internals = {
         'clearInterval',
         'clearImmediate',
         'console',
+        'AbortController',
+        'AbortSignal',
+        'AggregateError',
         'Buffer',
         'process',
         'global',
@@ -33,6 +36,9 @@ const internals = {
         'DataView',
         '__$$labCov',
         'gc',
+        'MessageChannel',
+        'MessageEvent',
+        'MessagePort',
 
         // Non-Enumerable globals
 
@@ -42,6 +48,8 @@ const internals = {
         'Number',
         'RangeError',
         'EvalError',
+        'Event',
+        'EventTarget',
         'FinalizationRegistry',
         'Function',
         'isFinite',