Update format_args!() test to account for inlining.

Author: m-ou-se

library/core/tests/fmt/mod.rs

@@ -22,11 +22,11 @@ fn test_pointer_formats_data_pointer() {
 #[test]
 fn test_estimated_capacity() {
     assert_eq!(format_args!("").estimated_capacity(), 0);
-    assert_eq!(format_args!("{}", "").estimated_capacity(), 0);
+    assert_eq!(format_args!("{}", {""}).estimated_capacity(), 0);
     assert_eq!(format_args!("Hello").estimated_capacity(), 5);
-    assert_eq!(format_args!("Hello, {}!", "").estimated_capacity(), 16);
-    assert_eq!(format_args!("{}, hello!", "World").estimated_capacity(), 0);
-    assert_eq!(format_args!("{}. 16-bytes piece", "World").estimated_capacity(), 32);
+    assert_eq!(format_args!("Hello, {}!", {""}).estimated_capacity(), 16);
+    assert_eq!(format_args!("{}, hello!", {"World"}).estimated_capacity(), 0);
+    assert_eq!(format_args!("{}. 16-bytes piece", {"World"}).estimated_capacity(), 32);
 }
 
 #[test]