Auto merge of rust-lang#146233 - jieyouxu:run-make-fission, r=Kobzol

Split `run-make` into two {`run-make`,`run-make-cargo`} test suites

## Summary

Split `tests/run-make` into two test suites, to make it faster and more convenient for contributors to run run-make tests that do not need in-tree `cargo`.

| New test suites        | Explanation                                                                                                                                                                                                                              |
| ---------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `tests/run-make`       | The "fast path" test suite intended for run-make tests that do not need in-tree `cargo`. These tests may not use `cargo`.                                                                                                                |
| `tests/run-make-cargo` | The "slow path" test suite that requires checking out `cargo` submodule and building in-tree `cargo`, and thus will have access to in-tree `cargo`. In practice, these constitute a very small portion of the original `run-make` tests. |

This PR carries out [MCP 847: Split run-make test suite into slower-building test suite with suitably-staged cargo and faster-building test suite without cargo](rust-lang/compiler-team#847).
Fixes rust-lang#135573 (for the tests that do not need in-tree `cargo`).
Fixes rust-lang#134109.

## Remarks

- I considered if we want to split by in-tree tools previously. However, as discussed rust-lang#134109, in practice `rustdoc` is not very slow to build, but `cargo` takes a good few minutes. So, the partition boundary was determined to be along in-tree `cargo` availability.
- The `run-make` tests previously that wanted to use `cargo` cannot just use the bootstrap `cargo`, otherwise they would run into situations where bootstrap `cargo` can significantly diverge from in-tree `cargo` (see rust-lang#130642).

---

try-job: aarch64-msvc-1
try-job: test-various
try-job: x86_64-gnu-debug
try-job: aarch64-gnu-debug
try-job: aarch64-apple
try-job: dist-various-1

Author: bors

scripts/test_rustc_tests.sh

@@ -121,7 +121,7 @@ rm tests/ui/abi/large-byval-align.rs # exceeds implementation limit of Cranelift
 # ============================================================
 rm -r tests/run-make/remap-path-prefix-dwarf # requires llvm-dwarfdump
 rm -r tests/run-make/strip # same
-rm -r tests/run-make/compiler-builtins # Expects lib/rustlib/src/rust to contains the standard library source
+rm -r tests/run-make-cargo/compiler-builtins # Expects lib/rustlib/src/rust to contains the standard library source
 rm -r tests/run-make/translation # same
 rm -r tests/run-make/missing-unstable-trait-bound # This disables support for unstable features, but running cg_clif needs some unstable features
 rm -r tests/run-make/const-trait-stable-toolchain # same
@@ -166,5 +166,5 @@ index 073116933bd..c3e4578204d 100644
 EOF
 
 echo "[TEST] rustc test suite"
-./x.py test --stage 0 --test-args=--no-capture tests/{codegen-units,run-make,ui,incremental}
+./x.py test --stage 0 --test-args=--no-capture tests/{codegen-units,run-make,run-make-cargo,ui,incremental}
 popd