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, 33 insertions, 0 deletions

diff --git a/tests/incremental/split_debuginfo_mode.rs b/tests/incremental/split_debuginfo_mode.rs
new file mode 100644
index 00000000000..edc1a80d30e
--- /dev/null
+++ b/tests/incremental/split_debuginfo_mode.rs
@@ -0,0 +1,33 @@
+// This test case makes sure that changing split-debuginfo commandline options triggers a full re-compilation.
+// We only test on x86_64-unknown-linux-gnu because there all combinations split-debuginfo settings are valid
+// and the test is platform-independent otherwise.
+
+// ignore-tidy-linelength
+// only-x86_64-unknown-linux-gnu
+// revisions:rpass1 rpass2 rpass3 rpass4
+
+// [rpass1]compile-flags: -Zquery-dep-graph -Csplit-debuginfo=unpacked -Zsplit-dwarf-kind=single -Zsplit-dwarf-inlining=on
+// [rpass2]compile-flags: -Zquery-dep-graph -Csplit-debuginfo=packed -Zsplit-dwarf-kind=single -Zsplit-dwarf-inlining=on
+// [rpass3]compile-flags: -Zquery-dep-graph -Csplit-debuginfo=packed -Zsplit-dwarf-kind=split -Zsplit-dwarf-inlining=on
+// [rpass4]compile-flags: -Zquery-dep-graph -Csplit-debuginfo=packed -Zsplit-dwarf-kind=split -Zsplit-dwarf-inlining=off
+
+#![feature(rustc_attrs)]
+// For rpass2 we change -Csplit-debuginfo and thus expect every CGU to be recompiled
+#![rustc_partition_codegened(module = "split_debuginfo_mode", cfg = "rpass2")]
+#![rustc_partition_codegened(module = "split_debuginfo_mode-another_module", cfg = "rpass2")]
+// For rpass3 we change -Zsplit-dwarf-kind and thus also expect every CGU to be recompiled
+#![rustc_partition_codegened(module = "split_debuginfo_mode", cfg = "rpass3")]
+#![rustc_partition_codegened(module = "split_debuginfo_mode-another_module", cfg = "rpass3")]
+// For rpass4 we change -Zsplit-dwarf-inlining and thus also expect every CGU to be recompiled
+#![rustc_partition_codegened(module = "split_debuginfo_mode", cfg = "rpass4")]
+#![rustc_partition_codegened(module = "split_debuginfo_mode-another_module", cfg = "rpass4")]
+
+mod another_module {
+    pub fn foo() -> &'static str {
+        "hello world"
+    }
+}
+
+pub fn main() {
+    println!("{}", another_module::foo());
+}