avoid some &str to String conversions

2022-07-10 03:18:56 +09:00
parent fac8fa5672
commit bda83e6543
13 changed files with 23 additions and 34 deletions
--- a/compiler/rustc_resolve/src/diagnostics.rs
+++ b/compiler/rustc_resolve/src/diagnostics.rs
@@ -928,10 +928,7 @@ impl<'a> Resolver<'a> {
                    "generic parameters with a default cannot use \
                                                forward declared identifiers"
                );
-                err.span_label(
-                    span,
-                    "defaulted generic parameters cannot be forward declared".to_string(),
-                );
+                err.span_label(span, "defaulted generic parameters cannot be forward declared");
                err
            }
            ResolutionError::ParamInTyOfConstParam(name) => {