errors: `span_suggestion` takes `impl ToString`

Change `span_suggestion` (and variants) to take `impl ToString` rather
than `String` for the suggested code, as this simplifies the
requirements on the diagnostic derive.

Signed-off-by: David Wood <david.wood@huawei.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs
index bdbc25af7fa..13e9a5e660f 100644
--- a/compiler/rustc_parse/src/parser/expr.rs
+++ b/compiler/rustc_parse/src/parser/expr.rs
@@ -1771,7 +1771,7 @@ impl<'a> Parser<'a> {
             .span_suggestion(
                 token.span,
                 "must have an integer part",
-                pprust::token_to_string(token).into(),
+                pprust::token_to_string(token),
                 Applicability::MachineApplicable,
             )
             .emit();
@@ -2324,7 +2324,7 @@ impl<'a> Parser<'a> {
             .span_suggestion_short(
                 span,
                 msg,
-                sugg.into(),
+                sugg,
                 // Has been misleading, at least in the past (closed Issue #48492).
                 Applicability::MaybeIncorrect,
             )
@@ -2828,7 +2828,7 @@ impl<'a> Parser<'a> {
                             e.span_suggestion(
                                 self.prev_token.span.shrink_to_hi(),
                                 "try adding a comma",
-                                ",".into(),
+                                ",",
                                 Applicability::MachineApplicable,
                             );
                         }