Add SEMICOLON_IN_EXPRESSIONS_FROM_MACROS to future-incompat report

compiler/rustc_lint_defs/src/builtin.rs

@@ -2948,6 +2948,7 @@ declare_lint! {
     "trailing semicolon in macro body used as expression",
     @future_incompatible = FutureIncompatibleInfo {
         reference: "issue #79813 <https://github.com/rust-lang/rust/issues/79813>",
+        reason: FutureIncompatibilityReason::FutureReleaseErrorReportNow,
     };
 }