Rollup merge of #22994 - eddyb:unsuffix-ints-good, r=alexcrichton

 Automatic has-same-types testing methodology can be found in #22501.
Because most of them don't work with `--pretty=typed`, compile-fail tests were manually audited.

r? @aturon

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libunicode/u_str.rs b/src/libunicode/u_str.rs
index 38cbe5c7dea..57439addeaa 100644
--- a/src/libunicode/u_str.rs
+++ b/src/libunicode/u_str.rs
@@ -525,7 +525,7 @@ impl<I> Iterator for Utf16Encoder<I> where I: Iterator<Item=char> {
             return Some(tmp);
         }
 
-        let mut buf = [0u16; 2];
+        let mut buf = [0; 2];
         self.chars.next().map(|ch| {
             let n = CharExt::encode_utf16(ch, &mut buf).unwrap_or(0);
             if n == 2 { self.extra = buf[1]; }