update golden fixtures and apply formatting from on-task-done

Golden fixtures updated to use explicit `impl<T: Ord> Foo<T>` instead
of compact `impl Foo<T: Ord>`. All 1283 tests pass.

https://claude.ai/code/session_0185DQbZrR8XjistfKkPwAki

Author: claude

wado-compiler/tests/format.fixtures.golden/all.clean.wado

@@ -86,7 +86,7 @@ struct MyArray<T> {
 }
 
 /// Inherent impl: compact form with bounds inlined
-impl MyArray<T: Ord> {
+impl<T: Ord> MyArray<T> {
     /// Sort method
     fn sort(&mut self) {
     }

wado-compiler/tests/format.fixtures.golden/mess.clean.wado

@@ -171,7 +171,7 @@ struct MyArray<T> {
 
 // Block comment /* */ before impl
 /* inherent impl with trait bound */
-impl MyArray<T: Ord> {
+impl<T: Ord> MyArray<T> {
     /* sort in ascending order */
     fn sort(&mut self) {
     }

wado-compiler/tests/format.fixtures.golden/no_prelude.clean.wado

@@ -26,7 +26,7 @@ variant Shape {
 }
 
 /// Inherent impl: compact form with bounds inlined
-impl Array<T: Ord> {
+impl<T: Ord> Array<T> {
     /// Sort method
     fn sort(&mut self) {
     }
@@ -104,7 +104,7 @@ struct DnsError {
 
 // Block comment /* */ before impl
 /* inherent impl with trait bound */
-impl Array<T: Ord> {
+impl<T: Ord> Array<T> {
     /* sort in ascending order */
     fn sort(&mut self) {
     }

wado-compiler/tests/format.rs

@@ -105,8 +105,7 @@ fn assert_format_preserves_ast(source: &str) {
                         diff_context.push_str(&format!("{marker} orig[{j}]: {}\n", orig_lines[j]));
                     }
                     if j < fmt_lines.len() {
-                        diff_context
-                            .push_str(&format!("{marker}  fmt[{j}]: {}\n", fmt_lines[j]));
+                        diff_context.push_str(&format!("{marker}  fmt[{j}]: {}\n", fmt_lines[j]));
                     }
                 }
                 break;
@@ -1736,7 +1735,9 @@ fn test_roundtrip_ast_all_fixtures() {
                     break;
                 }
             }
-            failures.push(format!("{filename}: AST changed by formatter ({diff_line})"));
+            failures.push(format!(
+                "{filename}: AST changed by formatter ({diff_line})"
+            ));
         }
     }