Move /src/test to /tests

tests/ui/try-from-int-error-partial-eq.rs

@@ -0,0 +1,12 @@
+// run-pass
+
+#![allow(unused_must_use)]
+
+use std::convert::TryFrom;
+use std::num::TryFromIntError;
+
+fn main() {
+    let x: u32 = 125;
+    let y: Result<u8, TryFromIntError> = u8::try_from(x);
+    y == Ok(125);
+}