classifies "Map getOrInsert()" web feature

web feature doc: https://github.com/web-platform-dx/web-features/blob/main/features/getorinsert.yml

Author: ChrisC

WEB_FEATURES.yml

@@ -345,6 +345,13 @@ features:
       - test/built-ins/global
     tags:
       - globalThis
+  
+  - name: getorinsert
+    files: 
+      - test/built-ins/Map/prototype/getOrInsert
+      - test/built-ins/Map/prototype/getOrInsertComputed
+      - test/built-ins/WeakMap/prototype/getOrInsert
+      - test/built-ins/WeakMap/prototype/getOrInsertComputed
 
   - name: hashbang-comments
     files:
@@ -1038,6 +1045,7 @@ features:
   - name: weakmap
     files:
       - test/built-ins/WeakMap
+      - "!test/built-ins/WeakMap/prototype/getOrInsert*"
       - test/language/expressions/class/subclass-builtins/subclass-WeakMap.js
       - test/language/statements/class/subclass-builtins/subclass-WeakMap.js
       - test/language/statements/class/subclass/builtin-objects/WeakMap