Auto merge of #233 - nox:ice, r=SimonSapin

Work around an unfortunate ICE

https://github.com/rust-lang/rust/issues/37274

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/rust-url/233)
<!-- Reviewable:end -->

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "url"
-version = "1.2.1"
+version = "1.2.2"
 authors = ["The rust-url developers"]
 
 description = "URL library for Rust, based on the WHATWG URL Standard"

src/lib.rs

@@ -762,7 +762,7 @@ impl Url {
     /// url.query_pairs_mut()
     ///     .clear()
     ///     .append_pair("foo", "bar & baz")
-    ///     .append_pair("saisons", "Été+hiver");
+    ///     .append_pair("saisons", "\u{00C9}t\u{00E9}+hiver");
     /// assert_eq!(url.query(), Some("foo=bar+%26+baz&saisons=%C3%89t%C3%A9%2Bhiver"));
     /// assert_eq!(url.as_str(),
     ///            "https://example.net/?foo=bar+%26+baz&saisons=%C3%89t%C3%A9%2Bhiver#nav");