Adds support for looking up past Blocks in expando objects

[orta]

Fixes #31972

The Block in the AST stops the the lookup for the symbol in the containing scope for the expando function, this PR makes the symbol lookup fallback to checking the blockscope scope when needed as well

/cc @andrewbranch

[sandersn]

Doesn't this only fail to work in TS? Can you add a test for JS as well and see whether it fails without your fix?

[orta]

Confirmed this fails in JS in the current playground, and double confirmed that it fixes it on that side too

// Creates a type { first:string, last: string }
/**
 * @typedef {Object} Human - creates a new type named 'SpecialType'
 * @property {string} first - a string property of SpecialType
 * @property...

Playground Link

[sandersn]

Can you try with just blockScopeContainer and check that things fail without both? I'd also like to see the updated baselines before signing off.

[orta]

This should be good for a second look