Auto merge of #80942 - c410-f3r:tests-tests-tests, r=petrochenkov

Move some tests to more reasonable directories - 2

All tests with a score equal or greater than 1.0 were moved to their respective directories by issuing

```bash
cat FILE | tr -s " " | tr -d '():' | sort -k3 | awk '$3 >= 1' | cut -d " " -f1-2 | sed 's;\\;/;g' | xargs -n2 git mv
```
**Observation**: The first column values is the only column with results greater zero

To attest the confidentiality of the model, some manual revision of at least of tests is needed and this process will be tracked in the following list:

* `src/test/ui/abi/issue-28676.rs` OK #28676
* `src/test/ui/array-slice-vec/issue-15730.rs` OK
* `src/test/ui/associated-types/issue-24338.rs` OK #54823
* `src/test/ui/associated-types/issue-48551.rs` Looks OK #48551
* `src/test/ui/associated-types/issue-50301.rs` Looks OK #63577

...

cc #73494
r? `@petrochenkov`

src/test/ui/issues/issue-15881-model-lexer-dotdotdot.rs

@@ -1,38 +0,0 @@
-// run-pass
-#![allow(illegal_floating_point_literal_pattern)] // FIXME #41620
-#![allow(ellipsis_inclusive_range_patterns)]
-
-// regression test for the model lexer handling the DOTDOTDOT syntax (#15877)
-
-
-pub fn main() {
-    match 5_usize {
-      1_usize...5_usize => {}
-      _ => panic!("should match range"),
-    }
-    match 5_usize {
-      6_usize...7_usize => panic!("shouldn't match range"),
-      _ => {}
-    }
-    match 5_usize {
-      1_usize => panic!("should match non-first range"),
-      2_usize...6_usize => {}
-      _ => panic!("math is broken")
-    }
-    match 'c' {
-      'a'...'z' => {}
-      _ => panic!("should support char ranges")
-    }
-    match -3_isize {
-      -7...5 => {}
-      _ => panic!("should match signed range")
-    }
-    match 3.0f64 {
-      1.0...5.0 => {}
-      _ => panic!("should match float range")
-    }
-    match -1.5f64 {
-      -3.6...3.6 => {}
-      _ => panic!("should match negative float range")
-    }
-}