Fixing span manipulation and indentation of the suggestion introduced by #126187

According to comments:
#128084 (comment)
https://github.com/rust-lang/rust/pull/126187/files#r1634897691

Author: surechen

compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs

@@ -4668,9 +4668,8 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> {
                 && b.expr.is_none()
             {
                 sugg_spans.push((
-                    // The span will point to the closing curly brace `}` of the block.
-                    b.span.shrink_to_hi().with_lo(b.span.hi() - BytePos(1)),
-                    "\n    Ok(())\n}".to_string(),
+                    self.tcx.sess.source_map().end_point(b.span).shrink_to_lo(),
+                    "\n    Ok(())\n".to_string(),
                 ));
             }
             err.multipart_suggestion_verbose(

tests/ui/return/return-from-residual-sugg-issue-125997.stderr

@@ -14,7 +14,6 @@ LL |     let mut _file = File::create("foo.txt")?;
 LL |
 LL + 
 LL +     Ok(())
-LL + }
    |
 
 error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
@@ -34,7 +33,6 @@ LL |
 LL |     println!();
 LL + 
 LL +     Ok(())
-LL + }
    |
 
 error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
@@ -53,7 +51,6 @@ LL |         let mut _file = File::create("foo.txt")?;
 LL |
 LL ~     
 LL +     Ok(())
-LL + }
    |
 
 error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`)
@@ -73,7 +70,6 @@ LL |
 LL |         println!();
 LL ~     
 LL +     Ok(())
-LL + }
    |
 
 error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
@@ -93,7 +89,6 @@ LL |
 LL |     mac!();
 LL + 
 LL +     Ok(())
-LL + }
    |
 
 error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
@@ -117,7 +112,6 @@ LL |
 LL |             println!();
 LL ~         
 LL +     Ok(())
-LL + }
    |
 
 error: aborting due to 6 previous errors

tests/ui/try-trait/try-operator-on-main.stderr

@@ -16,7 +16,6 @@ LL |     // error for a `Try` type on a non-`Try` fn
 LL |     try_trait_generic::<()>();
 LL + 
 LL +     Ok(())
-LL + }
    |
 
 error[E0277]: the `?` operator can only be applied to values that implement `Try`