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a91bb72dab
When resuming execution of a suspended function, we must not overwrite any cached `this` value with something from the ExecutionContext. This was causing an empty JS::Value to leak into the VM when resuming an async arrow function, since the "this mode" for such functions is lexical and thus ExecutionContext will have an empty `this`. It became a problem due to the bytecode optimization where we allow ourselves to assume that `this` remains cached after we've executed a ResolveThisBinding in this (or the first) basic block of the executable. Fixes https://github.com/LadybirdBrowser/ladybird/issues/138 |
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