Move and rename the clone-never.rs test

Author: JonathanBrouwer

tests/ui/never_type/basic/clone-never.rs

@@ -0,0 +1,6 @@
+//! regression test for issue #2151
+
+fn main() {
+    let x = panic!(); //~ ERROR type annotations needed
+    x.clone();
+}

tests/ui/never_type/basic/clone-never.stderr

@@ -0,0 +1,16 @@
+error[E0282]: type annotations needed
+  --> $DIR/never-type-inference-fail.rs:4:9
+   |
+LL |     let x = panic!();
+   |         ^
+LL |     x.clone();
+   |     - type must be known at this point
+   |
+help: consider giving `x` an explicit type
+   |
+LL |     let x: /* Type */ = panic!();
+   |          ++++++++++++
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0282`.