Improve error message for inherent_method_const_removed lint.

src/lints/inherent_method_const_removed.ron

@@ -73,7 +73,7 @@ SemverQuery(
                             method {
                                 visibility_limit @filter(op: "one_of", value: ["$public_or_default"])
                                 name @filter(op: "=", value: ["%method_name"])
-                                unsafe @filter(op: "=", value: ["$true"])
+                                const @filter(op: "!=", value: ["$true"])
 
                                 non_matching_span_: span @optional {
                                     filename @output
@@ -93,5 +93,5 @@ SemverQuery(
         "true": true,
     },
     error_message: "A publicly-visible method or associated fn is no longer `const` and can no longer be used in a `const` context.",
-    per_result_error_template: Some("{{name}}::{{method_name}} in file {{span_filename}}:{{span_begin_line}}"),
+    per_result_error_template: Some("{{name}}::{{method_name}} in {{multiple_spans non_matching_span_filename non_matching_span_begin_line}}"),
 )