when enter comma or '.', cause wrong code completion.

[liangpure]

• VSCode Version:1.25.1
• OS Version: win7/win10

Steps to Reproduce:

1. coding arr.reduce((a,))
2. when I tap ',' cause code completion,editor show
   arr.reduce((addEventListener,)).

Does this issue occur when all extensions are disabled?: Yes/No
Yes

[alexdima]

This is pretty weird, why would TypeScript propose addEventListener at a parameter name position...

[akolu]

Seems to be the same issue as #47696

Setting editor.acceptSuggestionOnCommitCharacter to false worked for me.

[mjbvz]

Duplicate of #54386