Rollup merge of #120629 - c410-f3r:testsssssss, r=petrochenkov

Move some test files

r? ``@petrochenkov``

src/tools/tidy/src/ui_tests.rs

@@ -14,8 +14,8 @@ use std::path::{Path, PathBuf};
 // #73494.
 const ENTRY_LIMIT: usize = 900;
 // FIXME: The following limits should be reduced eventually.
-const ISSUES_ENTRY_LIMIT: usize = 1819;
-const ROOT_ENTRY_LIMIT: usize = 872;
+const ISSUES_ENTRY_LIMIT: usize = 1794;
+const ROOT_ENTRY_LIMIT: usize = 870;
 
 const EXPECTED_TEST_FILE_EXTENSIONS: &[&str] = &[
     "rs",     // test source files

tests/ui/extern-mod-syntax.rs

@@ -1,11 +0,0 @@
-// run-pass
-
-#![allow(unused_imports)]
-#![no_std]
-
-extern crate std;
-use std::ffi::c_void;
-
-pub fn main() {
-    std::println!("Hello world!");
-}

tests/ui/issues/issue-3878.rs

@@ -1,9 +0,0 @@
-// run-pass
-// pretty-expanded FIXME #23616
-
-#![allow(path_statements)]
-
-pub fn main() {
-    let y: Box<_> = Box::new(1);
-    y;
-}