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We try to merge consecutive reactive scopes that will always invalidate together, but there's one common case that isn't handled. ```js const y = [[x]]; ``` Here we'll create two consecutive scopes for the inner and outer array expressions. Because the input to the second scope is a temporary, they'll merge into one scope. But if we name the inner array, the merging stops: ```js const array = [x]; const y = [array]; ``` This is because the merging logic checks if all the dependencies of the second scope are outputs of the first scope, but doesn't account for renaming due to LoadLocal/StoreLocal. The fix is to track these temporaries. --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/facebook/react/pull/34049). * __->__ #34049 * #34047 * #34044