Fix typo in meta-var expr diagnostics

Author: Xiretza

compiler/rustc_expand/src/mbe/metavar_expr.rs

@@ -194,7 +194,7 @@ fn parse_depth<'psess>(
     {
         Ok(n_usize)
     } else {
-        let msg = "only unsuffixes integer literals are supported in meta-variable expressions";
+        let msg = "only unsuffixed integer literals are supported in meta-variable expressions";
         Err(psess.dcx().struct_span_err(span, msg))
     }
 }

tests/ui/macros/rfc-3086-metavar-expr/syntax-errors.rs

@@ -103,7 +103,7 @@ macro_rules! metavar_token_without_ident {
 
 macro_rules! metavar_with_literal_suffix {
     ( $( $i:ident ),* ) => { ${ index(1u32) } };
-    //~^ ERROR only unsuffixes integer literals are supported in meta-variable expressions
+    //~^ ERROR only unsuffixed integer literals are supported in meta-variable expressions
     //~| ERROR expected expression, found `$`
 }
 

tests/ui/macros/rfc-3086-metavar-expr/syntax-errors.stderr

@@ -160,7 +160,7 @@ error: meta-variables within meta-variable expressions must be referenced using
 LL |     ( $( $i:ident ),* ) => { ${ ignore() } };
    |                                 ^^^^^^
 
-error: only unsuffixes integer literals are supported in meta-variable expressions
+error: only unsuffixed integer literals are supported in meta-variable expressions
   --> $DIR/syntax-errors.rs:105:33
    |
 LL |     ( $( $i:ident ),* ) => { ${ index(1u32) } };