error: expected `{`, found `)`
  --> $DIR/no-close-delim-issue-139248.rs:9:27
   |
LL | m! { static a : () = (if b) }
   |                           ^ expected `{`
   |
note: the `if` expression is missing a block after this condition
  --> $DIR/no-close-delim-issue-139248.rs:9:26
   |
LL | m! { static a : () = (if b) }
   |                          ^

error: expected `{`, found `)`
  --> $DIR/no-close-delim-issue-139248.rs:9:27
   |
LL | m! { static a : () = (if b) }
   |                           ^ expected `{`
   |
note: the `if` expression is missing a block after this condition
  --> $DIR/no-close-delim-issue-139248.rs:9:26
   |
LL | m! { static a : () = (if b) }
   |                          ^
   = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`

error: aborting due to 2 previous errors