Rustup to rust-lang/rust#62984

Lint redundant_semicolon was added to rustc

Author: flip1995

tests/ui/author/blocks.rs

@@ -1,4 +1,5 @@
 #![feature(stmt_expr_attributes)]
+#![allow(redundant_semicolon)]
 
 #[rustfmt::skip]
 fn main() {

tests/ui/author/blocks.stderr

@@ -1,10 +1,16 @@
 error: statement with no effect
-  --> $DIR/blocks.rs:14:5
+  --> $DIR/blocks.rs:8:9
    |
-LL |     -x;
-   |     ^^^
+LL |         ;;;;
+   |         ^^^^
    |
    = note: `-D clippy::no-effect` implied by `-D warnings`
 
-error: aborting due to previous error
+error: statement with no effect
+  --> $DIR/blocks.rs:15:5
+   |
+LL |     -x;
+   |     ^^^
+
+error: aborting due to 2 previous errors
 

tests/ui/author/blocks.stdout

@@ -1,7 +1,10 @@
 if_chain! {
     if let ExprKind::Block(ref block) = expr.node;
     if let Some(trailing_expr) = &block.expr;
-    if block.stmts.len() == 0;
+    if block.stmts.len() == 1;
+    if let StmtKind::Semi(ref e, _) = block.stmts[0].node
+    if let ExprKind::Tup(ref elements) = e.node;
+    if elements.len() == 0;
     then {
         // report your lint here
     }

tests/ui/swap.rs

@@ -1,5 +1,5 @@
 #![warn(clippy::all)]
-#![allow(clippy::blacklisted_name, unused_assignments)]
+#![allow(clippy::blacklisted_name, clippy::no_effect, redundant_semicolon, unused_assignments)]
 
 struct Foo(u32);