resolve lifetimes for const generic defaults

src/test/ui/const-generics/issue-93647.rs

@@ -0,0 +1,6 @@
+struct X<const N: usize = {
+    (||1usize)()
+    //~^ ERROR calls in constants are limited to
+}>;
+
+fn main() {}

src/test/ui/const-generics/issue-93647.stderr

@@ -0,0 +1,9 @@
+error[E0015]: calls in constants are limited to constant functions, tuple structs and tuple variants
+  --> $DIR/issue-93647.rs:2:5
+   |
+LL |     (||1usize)()
+   |     ^^^^^^^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0015`.

src/test/ui/const-generics/outer-lifetime-in-const-generic-default.rs

@@ -0,0 +1,10 @@
+struct Foo<
+    'a,
+    const N: usize = {
+        let x: &'a ();
+        //~^ ERROR use of non-static lifetime `'a` in const generic
+        3
+    },
+>(&'a ());
+
+fn main() {}

src/test/ui/const-generics/outer-lifetime-in-const-generic-default.stderr

@@ -0,0 +1,11 @@
+error[E0771]: use of non-static lifetime `'a` in const generic
+  --> $DIR/outer-lifetime-in-const-generic-default.rs:4:17
+   |
+LL |         let x: &'a ();
+   |                 ^^
+   |
+   = note: for more information, see issue #74052 <https://github.com/rust-lang/rust/issues/74052>
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0771`.