Make resolve suggestion more generic

Author: estebank

Diff for: compiler/rustc_resolve/src/late.rs

@@ -3354,7 +3354,7 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> {
                     }
                     Some((
                         span,
-                        "you might have meant to write a method call instead of a range",
+                        "you might have meant to write `.` instead of `..`",
                         sugg.to_string(),
                         Applicability::MaybeIncorrect,
                     ))

Diff for: src/test/ui/suggestions/method-access-to-range-literal-typo.stderr

@@ -4,7 +4,7 @@ error[E0425]: cannot find function `foo` in this scope
 LL |         self.option..foo().get(0)
    |                      ^^^ not found in this scope
    |
-help: you might have meant to write a method call instead of a range
+help: you might have meant to write `.` instead of `..`
    |
 LL -         self.option..foo().get(0)
 LL +         self.option.foo().get(0)