Auto merge of #55803 - Mark-Simulacrum:rollup, r=Mark-Simulacrum

Rollup of 17 pull requests

Successful merges:

 - #55576 (Clarify error message for -C opt-level)
 - #55633 (Support memcpy/memmove with differing src/dst alignment)
 - #55638 (Fix ICE in msg_span_from_free_region on ReEmpty)
 - #55659 (rustc: Delete grouping logic from the musl target)
 - #55719 (Sidestep link error from rustfix'ed code by using a *defined* static.)
 - #55736 (Elide anon lifetimes in conflicting impl note)
 - #55739 (Consume optimization fuel from the MIR inliner)
 - #55742 (Avoid panic when matching function call)
 - #55753 (borrow_set: remove a helper function and a clone it uses)
 - #55755 (Improve creation of 3 IndexVecs)
 - #55758 ([regression - rust2018]: unused_mut lint false positives on nightly)
 - #55760 (Remove intermediate font specs)
 - #55761 (mir: remove a hacky recursive helper function)
 - #55774 (wasm32-unknown-emscripten expects the rust_eh_personality symbol)
 - #55777 (Use `Lit` rather than `P<Lit>` in `ast::ExprKind`.)
 - #55783 (Deprecate mpsc channel selection)
 - #55788 (rustc: Request ansi colors if stderr isn't a tty)

Failed merges:

r? @ghost

Author: bors

src/libpanic_abort/lib.rs

@@ -97,7 +97,10 @@ pub unsafe extern fn __rust_start_panic(_payload: usize) -> u32 {
 pub mod personalities {
     #[no_mangle]
     #[cfg(not(any(
-        target_arch = "wasm32",
+        all(
+            target_arch = "wasm32",
+            not(target_os = "emscripten"),
+        ),
         all(
             target_os = "windows",
             target_env = "gnu",

src/librustc/hir/lowering.rs

@@ -3705,7 +3705,7 @@ impl<'a> LoweringContext<'a> {
                 let ohs = P(self.lower_expr(ohs));
                 hir::ExprKind::Unary(op, ohs)
             }
-            ExprKind::Lit(ref l) => hir::ExprKind::Lit(P((**l).clone())),
+            ExprKind::Lit(ref l) => hir::ExprKind::Lit(P((*l).clone())),
             ExprKind::Cast(ref expr, ref ty) => {
                 let expr = P(self.lower_expr(expr));
                 hir::ExprKind::Cast(expr, self.lower_ty(ty, ImplTraitContext::disallowed()))