fixup! lib: refactor internal webidl converters

Signed-off-by: Filip Skokan <panva.ip@gmail.com>

Author: panva

lib/internal/webidl.js

@@ -882,7 +882,9 @@ converters.BufferSource = (V, options = kEmptyObject) => {
   }
 
   // ArrayBuffer conversion step 3: validate [AllowResizable].
-  validateBufferSourceBacking(V, options);
+  // isArrayBuffer(V) already excluded SharedArrayBuffer, so no [AllowShared]
+  // validation is needed on this branch.
+  validateAllowResizableArrayBuffer(V, options);
 
   // Step 4: return a reference to the same ArrayBuffer.
   return V;