review comment: wording

src/librustc_parse/parser/expr.rs

@@ -828,7 +828,7 @@ impl<'a> Parser<'a> {
             if let Some(args) = segment.args {
                 self.struct_span_err(
                     args.span(),
-                    "field expressions may not have generic arguments",
+                    "field expressions cannot have generic arguments",
                 )
                 .emit();
             }

src/test/ui/parser/type-parameters-in-field-exprs.rs

@@ -9,9 +9,9 @@ fn main() {
         y: 2,
     };
     f.x::<isize>;
-    //~^ ERROR field expressions may not have generic arguments
+    //~^ ERROR field expressions cannot have generic arguments
     f.x::<>;
-    //~^ ERROR field expressions may not have generic arguments
+    //~^ ERROR field expressions cannot have generic arguments
     f.x::();
-    //~^ ERROR field expressions may not have generic arguments
+    //~^ ERROR field expressions cannot have generic arguments
 }

src/test/ui/parser/type-parameters-in-field-exprs.stderr

@@ -1,16 +1,16 @@
-error: field expressions may not have generic arguments
+error: field expressions cannot have generic arguments
   --> $DIR/type-parameters-in-field-exprs.rs:11:10
    |
 LL |     f.x::<isize>;
    |          ^^^^^^^
 
-error: field expressions may not have generic arguments
+error: field expressions cannot have generic arguments
   --> $DIR/type-parameters-in-field-exprs.rs:13:10
    |
 LL |     f.x::<>;
    |          ^^
 
-error: field expressions may not have generic arguments
+error: field expressions cannot have generic arguments
   --> $DIR/type-parameters-in-field-exprs.rs:15:7
    |
 LL |     f.x::();

src/test/ui/suggestions/method-missing-parentheses.rs

@@ -1,5 +1,5 @@
 fn main() {
     let _ = vec![].into_iter().collect::<usize>;
     //~^ ERROR attempted to take value of method `collect` on type `std::vec::IntoIter<_>`
-    //~| ERROR field expressions may not have generic arguments
+    //~| ERROR field expressions cannot have generic arguments
 }

src/test/ui/suggestions/method-missing-parentheses.stderr

@@ -1,4 +1,4 @@
-error: field expressions may not have generic arguments
+error: field expressions cannot have generic arguments
   --> $DIR/method-missing-parentheses.rs:2:41
    |
 LL |     let _ = vec![].into_iter().collect::<usize>;