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, 87 insertions, 0 deletions

diff --git a/tests/run-make/coverage/conditions.rs b/tests/run-make/coverage/conditions.rs
new file mode 100644
index 00000000000..057599d1b47
--- /dev/null
+++ b/tests/run-make/coverage/conditions.rs
@@ -0,0 +1,87 @@
+#![allow(unused_assignments, unused_variables)]
+
+fn main() {
+    let mut countdown = 0;
+    if true {
+        countdown = 10;
+    }
+
+    const B: u32 = 100;
+    let x = if countdown > 7 {
+        countdown -= 4;
+        B
+    } else if countdown > 2 {
+        if countdown < 1 || countdown > 5 || countdown != 9 {
+            countdown = 0;
+        }
+        countdown -= 5;
+        countdown
+    } else {
+        return;
+    };
+
+    let mut countdown = 0;
+    if true {
+        countdown = 10;
+    }
+
+    if countdown > 7 {
+        countdown -= 4;
+    } else if countdown > 2 {
+        if countdown < 1 || countdown > 5 || countdown != 9 {
+            countdown = 0;
+        }
+        countdown -= 5;
+    } else {
+        return;
+    }
+
+    if true {
+        let mut countdown = 0;
+        if true {
+            countdown = 10;
+        }
+
+        if countdown > 7 {
+            countdown -= 4;
+        }
+        else if countdown > 2 {
+            if countdown < 1 || countdown > 5 || countdown != 9 {
+                countdown = 0;
+            }
+            countdown -= 5;
+        } else {
+            return;
+        }
+    }
+
+
+    let mut countdown = 0;
+    if true {
+        countdown = 1;
+    }
+
+    let z = if countdown > 7 {
+        countdown -= 4;
+    } else if countdown > 2 {
+        if countdown < 1 || countdown > 5 || countdown != 9 {
+            countdown = 0;
+        }
+        countdown -= 5;
+    } else {
+        let should_be_reachable = countdown;
+        println!("reached");
+        return;
+    };
+
+    let w = if countdown > 7 {
+        countdown -= 4;
+    } else if countdown > 2 {
+        if countdown < 1 || countdown > 5 || countdown != 9 {
+            countdown = 0;
+        }
+        countdown -= 5;
+    } else {
+        return;
+    };
+}