Move /src/test to /tests

tests/rustdoc-ui/coverage/enum-tuple.rs

@@ -0,0 +1,18 @@
+// compile-flags:-Z unstable-options --show-coverage
+// check-pass
+
+//! (remember the crate root is still a module)
+
+/// so check out this enum here
+pub enum ThisEnum {
+    /// No need to document the field if there is only one in a tuple variant!
+    VarOne(String),
+    /// But if there is more than one... still fine!
+    VarTwo(String, String),
+}
+
+/// Struct.
+pub struct ThisStruct(u32);
+
+/// Struct.
+pub struct ThisStruct2(u32, u8);