Rollup merge of #139214 - bjorn3:edition_2024_rustfmt, r=compiler-errors

Tell rustfmt to use the 2024 edition in ./x.py fmt

Most crates in this repo have been moved to the 2024 edition already. This also allows removing a rustfmt exclusion for a cg_clif test.

Author: Zalathar

compiler/rustc_codegen_cranelift/example/gen_block_iterate.rs

@@ -6,16 +6,25 @@
 #![feature(gen_blocks)]
 
 fn foo() -> impl Iterator<Item = u32> {
-    gen { yield 42; for x in 3..6 { yield x } }
+    gen {
+        yield 42;
+        for x in 3..6 {
+            yield x
+        }
+    }
 }
 
 fn moved() -> impl Iterator<Item = u32> {
     let mut x = "foo".to_string();
     gen move {
         yield 42;
-        if x == "foo" { return }
+        if x == "foo" {
+            return;
+        }
         x.clear();
-        for x in 3..6 { yield x }
+        for x in 3..6 {
+            yield x
+        }
     }
 }
 
@@ -32,5 +41,4 @@ fn main() {
     let mut iter = moved();
     assert_eq!(iter.next(), Some(42));
     assert_eq!(iter.next(), None);
-
 }

compiler/rustc_codegen_cranelift/rustfmt.toml

@@ -1,7 +1,3 @@
-ignore = [
-    "example/gen_block_iterate.rs", # uses edition 2024
-]
-
 # Matches rustfmt.toml of rustc
 style_edition = "2024"
 use_small_heuristics = "Max"

rustfmt.toml

@@ -49,7 +49,6 @@ ignore = [
 
     # These are ignored by a standard cargo fmt run.
     "compiler/rustc_codegen_cranelift/scripts",
-    "compiler/rustc_codegen_cranelift/example/gen_block_iterate.rs", # uses edition 2024
     "compiler/rustc_codegen_gcc/tests",
     # Code automatically generated and included.
     "compiler/rustc_codegen_gcc/src/intrinsic/archs.rs",

src/bootstrap/src/core/build_steps/format.rs

@@ -31,7 +31,7 @@ fn rustfmt(
     // Avoid the submodule config paths from coming into play. We only allow a single global config
     // for the workspace for now.
     cmd.arg("--config-path").arg(src.canonicalize().unwrap());
-    cmd.arg("--edition").arg("2021");
+    cmd.arg("--edition").arg("2024");
     cmd.arg("--unstable-features");
     cmd.arg("--skip-children");
     if check {

src/etc/test-float-parse/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "test-float-parse"
 version = "0.1.0"
-edition = "2021"
+edition = "2024"
 publish = false
 
 [dependencies]