Auto merge of #107251 - dingxiangfei2009:let-chain-rescope, r=jieyouxu #50407

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7 errors and 10 warnings

this file contains an unclosed delimiter

lifetimes cannot start with a number

missing type for `static` item

mismatched closing delimiter: `}`

this file contains an unclosed delimiter

unexpected closing delimiter: `}`

unexpected `if` in the condition expression

ambiguous glob re-exports

unused import: `$column_name`

unused import: `super::table as $table_name`

unused import: `$column_name`

unused import: `super::table as $table_name`

unused import: `$column_name`