Tweak deriving-all-codegen.rs.

To include some `Option<>` fields of different types in a single enum.
The test output is currently buggy, but the next commit will fix that.

Author: nnethercote

Diff for: src/test/ui/deriving/deriving-all-codegen.rs

@@ -85,7 +85,7 @@ enum Mixed {
     P,
     Q,
     R(u32),
-    S { d1: u32, d2: u32 },
+    S { d1: Option<u32>, d2: Option<i32> },
 }
 
 // An enum with no fieldless variants. Note that `Default` cannot be derived

Diff for: src/test/ui/deriving/deriving-all-codegen.stdout

@@ -789,15 +789,16 @@ enum Mixed {
     Q,
     R(u32),
     S {
-        d1: u32,
-        d2: u32,
+        d1: Option<u32>,
+        d2: Option<i32>,
     },
 }
 #[automatically_derived]
 impl ::core::clone::Clone for Mixed {
     #[inline]
     fn clone(&self) -> Mixed {
         let _: ::core::clone::AssertParamIsClone<u32>;
+        let _: ::core::clone::AssertParamIsClone<Option<u32>>;
         *self
     }
 }
@@ -864,6 +865,7 @@ impl ::core::cmp::Eq for Mixed {
     #[no_coverage]
     fn assert_receiver_is_total_eq(&self) -> () {
         let _: ::core::cmp::AssertParamIsEq<u32>;
+        let _: ::core::cmp::AssertParamIsEq<Option<u32>>;
     }
 }
 #[automatically_derived]