Reword message

Author: estebank

src/librustc_typeck/check/method/suggest.rs

@@ -497,7 +497,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 if !static_sources.is_empty() {
                     err.note(
                         "found the following associated functions; to be used as methods, \
-                              functions must have a `self` parameter",
+                         functions must have a `self` parameter",
                     );
                     err.span_label(span, "this is an associated function, not a method");
                 }
@@ -653,7 +653,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                             span,
                             &format!(
                                 "consider restricting the type parameter{s} to satisfy the \
-                                 obligation{s}",
+                                 trait bound{s}",
                                 s = pluralize!(obligations.len())
                             ),
                             format!(

src/test/ui/suggestions/missing-trait-bounds-for-method-call.stderr

@@ -12,7 +12,7 @@ LL |         self.foo();
            which is required by `Foo<T>: Bar`
            `T: std::default::Default`
            which is required by `Foo<T>: Bar`
-help: consider restricting the type parameters to satisfy the obligations
+help: consider restricting the type parameters to satisfy the trait bounds
    |
 LL | struct Foo<T> where T: Bar, T: std::default::Default {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -29,7 +29,7 @@ LL |         self.foo();
    = note: the method `foo` exists but the following trait bounds were not satisfied:
            `T: std::default::Default`
            which is required by `Fin<T>: Bar`
-help: consider restricting the type parameter to satisfy the obligation
+help: consider restricting the type parameter to satisfy the trait bound
    |
 LL | struct Fin<T> where T: Bar, T: std::default::Default {
    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^