add regression test for rust-lang#60629

hellow554 · hellow554 · commit a918315e5add · 2019-05-10T12:57:55.000+02:00
diff --git a/src/test/incremental/issue-60629.rs b/src/test/incremental/issue-60629.rs
@@ -0,0 +1,11 @@
+// revisions:rpass1 rpass2
+
+struct A;
+
+#[cfg(rpass2)]
+impl From<A> for () {
+    fn from(_: A) {}
+}
+
+fn main() {}
+
