Move some more tests to check-pass

Author: LeSeulArtichaut

src/test/ui/consts/const-eval/double_promotion.rs

@@ -1,4 +1,4 @@
-// build-pass
+// check-pass
 
 #![feature(const_fn, rustc_attrs)]
 

src/test/ui/consts/const-eval/ice-packed.rs

@@ -1,4 +1,7 @@
-// build-pass
+// Regression test for #50356: Compiler panic when using repr(packed)
+// associated constant in a match arm
+
+// check-pass
 #[derive(Copy, Clone, PartialEq, Eq)]
 #[repr(packed)]
 pub struct Num(u64);

src/test/ui/consts/const-eval/issue-51300.rs

@@ -1,4 +1,4 @@
-// build-pass
+// check-pass
 // https://github.com/rust-lang/rust/issues/51300
 
 #[derive(PartialEq, Eq, Clone, Copy)]