rust: Cleanup commit to prepare for new bootstrap.

This commit is not atomic and is not functional by itself; this is done so to
make the next set of changes more comprehensible.

* gnu/packages/patches/rust-1.19-mrustc.patch: Delete file.
* gnu/packages/patches/rust-1.30-gdb-llvm.patch: Likewise.
* gnu/packages/patches/rust-bootstrap-stage0-test.patch: Likewise.
* gnu/local.mk (dist_patch_DATA): Un-register files.
* gnu/packages/rust.scm (mrustc): Delete variable.
(rust-1.19, rust-1.20, rust-1.21 rust-1.22, rust-1.23, rust-1.24)
(rust-1.25, rust-1.26, rust-1.27, rust-1.28, rust-1.29)
(rust-1.30): Delete variables.
(rust-1.31 through rust-1.49): Fix indentation and do other cosmetic changes.
(rust): Define as rust-1.49.

1 files changed, 0 insertions, 28 deletions

diff --git a/gnu/packages/patches/rust-1.19-mrustc.patch b/gnu/packages/patches/rust-1.19-mrustc.patch
deleted file mode 100644
index 261162172e..0000000000
--- a/gnu/packages/patches/rust-1.19-mrustc.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-See https://github.com/thepowersgang/mrustc/archive/v0.8.0.tar.gz
-
---- rustc-1.19.0-src-orig/src/libcore/intrinsics.rs
-+++ rustc-1.19.0-src/src/libcore/intrinsics.rs
-@@ -678,5 +678,9 @@
-     pub fn min_align_of_val<T: ?Sized>(_: &T) -> usize;
- 
-+    /// Obtain the length of a slice pointer
-+    #[cfg(rust_compiler="mrustc")]
-+    pub fn mrustc_slice_len<T>(pointer: *const [T]) -> usize;
-+
-     /// Gets a static string slice containing the name of a type.
-     pub fn type_name<T: ?Sized>() -> &'static str;
-
---- rustc-1.19.0-src-orig/src/libcore/slice/mod.rs
-+++ rustc-1.19.0-src/src/libcore/slice/mod.rs
-@@ -413,6 +413,8 @@
-     #[inline]
-     fn len(&self) -> usize {
--        unsafe {
--            mem::transmute::<&[T], Repr<T>>(self).len
--        }
-+        #[cfg(not(rust_compiler="mrustc"))]
-+        let rv = unsafe { mem::transmute::<&[T], Repr<T>>(self).len };
-+        #[cfg(rust_compiler="mrustc")]
-+        let rv = unsafe { ::intrinsics::mrustc_slice_len(self) };
-+        rv
-     }