maybe fix ice-6252, idk

Author: ChrisDenton

src/tools/clippy/tests/ui/crashes/ice-6252.stderr

@@ -1,16 +1,3 @@
-error[E0412]: cannot find type `PhantomData` in this scope
-  --> tests/ui/crashes/ice-6252.rs:9:9
-   |
-LL |     _n: PhantomData,
-   |         ^^^^^^^^^^^ not found in this scope
-   |
-help: consider importing one of these items
-   |
-LL + use core::marker::PhantomData;
-   |
-LL + use std::marker::PhantomData;
-   |
-
 error[E0412]: cannot find type `VAL` in this scope
   --> tests/ui/crashes/ice-6252.rs:11:63
    |
@@ -22,6 +9,22 @@ help: you might be missing a type parameter
 LL | impl<N, M, VAL> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}
    |          +++++
 
+error[E0107]: missing generics for struct `std::marker::PhantomData`
+  --> tests/ui/crashes/ice-6252.rs:9:9
+   |
+LL |     _n: PhantomData,
+   |         ^^^^^^^^^^^ expected 1 generic argument
+   |
+note: struct defined here, with 1 generic parameter: `T`
+  --> F:/rust/library/core/src/marker.rs:740:12
+   |
+LL | pub struct PhantomData<T: ?Sized>;
+   |            ^^^^^^^^^^^ -
+help: add missing generic argument
+   |
+LL |     _n: PhantomData<T>,
+   |                    +++
+
 error[E0046]: not all trait items implemented, missing: `VAL`
   --> tests/ui/crashes/ice-6252.rs:11:1
    |
@@ -33,5 +36,5 @@ LL | impl<N, M> TypeVal<usize> for Multiply<N, M> where N: TypeVal<VAL> {}
 
 error: aborting due to 3 previous errors
 
-Some errors have detailed explanations: E0046, E0412.
+Some errors have detailed explanations: E0046, E0107, E0412.
 For more information about an error, try `rustc --explain E0046`.