``` error[E0308]: mismatched types --> $DIR/expr-as-stmt.rs:69:5 | LL | match () { () => 1 } + match () { () => 1 } | ^^^^^^^^^^^^^^^^^^^^ expected `()`, found integer | help: parentheses are required to parse this as an expression | LL | (match () { () => 1 }) + match () { () => 1 } | + + ```
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