Auto merge of #106458 - albertlarsan68:move-tests, r=jyn514

Move src/test to the root

See MCP at rust-lang/compiler-team#573

There may be more changes needed.

The first commit is just the move of the files:
You can check that the first commit did not do anything else than renames by running
```
git diff --diff-filter=r -M100% <rust-lang remote>/master <first commit hash>
```
The output should be empty, because the filter excludes renames, and the match threshold for qualifying a rename is 100%.

The second one is mostly a "find and replace" of `src/test` to `tests` and whatever is needed to make CI pass.

What is left to do:
---

- [x] Move directory
- [ ] Change references to `src/test`
    - [x] Change references in-tree
    - [ ] Change references in submodules / out-of-tree docs
- [x] Make CI pass:
    - [x] Fix tidy
    - [x] Fix tests
    - [x] Bless tests if needed (shouldn't normally)
- [ ] Merge it !

1 files changed, 0 insertions, 12 deletions

diff --git a/src/test/ui/parser/parser-unicode-whitespace.rs b/src/test/ui/parser/parser-unicode-whitespace.rs
deleted file mode 100644
index 555cd68c3a7..00000000000
--- a/src/test/ui/parser/parser-unicode-whitespace.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-// run-pass
-// Beware editing: it has numerous whitespace characters which are important.
-// It contains one ranges from the 'PATTERN_WHITE_SPACE' property outlined in
-// https://unicode.org/Public/UNIDATA/PropList.txt
-//
-// The characters in the first expression of the assertion can be generated
-// from: "4\u{0C}+\n\t\r7\t*\u{20}2\u{85}/\u{200E}3\u{200F}*\u{2028}2\u{2029}"
-pub fn main() {
-assert_eq!(4+
-
-7   * 2…/‎3‏*
2
, 4 + 7 * 2 / 3 * 2);
-}