tests: Move run-pass tests without naming conflicts to ui

src/test/ui/char_unicode.rs

@@ -0,0 +1,12 @@
+// run-pass
+
+#![feature(unicode_version)]
+
+/// Tests access to the internal Unicode Version type and value.
+pub fn main() {
+    check(std::char::UNICODE_VERSION);
+}
+
+pub fn check(unicode_version: std::char::UnicodeVersion) {
+    assert!(unicode_version.major >= 10);
+}