raf support weakset

[vyuvlink]

No description provided.

[vercel]

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[lgtm-com]

This pull request introduces 2 alerts when merging 0ad9e5f into c809254 - view on LGTM.com

new alerts:

• 1 for Property access on null or undefined
• 1 for Invocation of non-function

[lgtm-com]

This pull request introduces 2 alerts when merging 630aa02 into c809254 - view on LGTM.com

new alerts:

• 1 for Property access on null or undefined
• 1 for Invocation of non-function

[lgtm-com]

This pull request introduces 2 alerts when merging 5c2c1bf into c809254 - view on LGTM.com

new alerts:

• 1 for Property access on null or undefined
• 1 for Invocation of non-function

[lgtm-com]

This pull request introduces 2 alerts when merging 64050f8 into c809254 - view on LGTM.com

new alerts:

• 1 for Property access on null or undefined
• 1 for Invocation of non-function

[afc163]

解决什么问题。