Auto merge of #70536 - Centril:rustc-middle, r=eddyb

Rename `librustc` to `librustc_middle`

Here we rename `librustc` to `librustc_middle`.

This crate is not nearly as large or central as it was previously and so it doesn't make much sense to give it such a central name as `librustc` ("the entry point to the compiler"). Moreover, there is already a `rustc` crate which is has the actual `fn main` of `rustc`, so having `librustc` is confusing relative to that.

r? @eddyb

1 files changed, 1 insertions, 1 deletions

diff --git a/src/librustc_errors/lib.rs b/src/librustc_errors/lib.rs
index 6157c46f80c..204fea58c95 100644
--- a/src/librustc_errors/lib.rs
+++ b/src/librustc_errors/lib.rs
@@ -425,7 +425,7 @@ impl Handler {
     }
 
     // This is here to not allow mutation of flags;
-    // as of this writing it's only used in tests in librustc.
+    // as of this writing it's only used in tests in librustc_middle.
     pub fn can_emit_warnings(&self) -> bool {
         self.flags.can_emit_warnings
     }