clippy: {Meta,Pointee,}Sized in non-minicore

One clippy test is `no_core` and needs to have `MetaSized` and
`PointeeSized` added to it.

Author: davidtwco

src/tools/clippy/tests/ui/def_id_nocore.rs

@@ -7,8 +7,14 @@
 #[link(name = "c")]
 extern "C" {}
 
+#[lang = "pointee_sized"]
+pub trait PointeeSized {}
+
+#[lang = "meta_sized"]
+pub trait MetaSized: PointeeSized {}
+
 #[lang = "sized"]
-pub trait Sized {}
+pub trait Sized: MetaSized {}
 #[lang = "copy"]
 pub trait Copy {}
 #[lang = "freeze"]

src/tools/clippy/tests/ui/def_id_nocore.stderr

@@ -1,5 +1,5 @@
 error: methods called `as_*` usually take `self` by reference or `self` by mutable reference
-  --> tests/ui/def_id_nocore.rs:27:19
+  --> tests/ui/def_id_nocore.rs:33:19
    |
 LL |     pub fn as_ref(self) -> &'static str {
    |                   ^^^^