update paths in comments

Author: joboet

src/helpers.rs

@@ -25,7 +25,7 @@ use rand::RngCore;
 use crate::*;
 
 // This mapping should match `decode_error_kind` in
-// <https://github.com/rust-lang/rust/blob/master/library/std/src/sys/unix/mod.rs>.
+// <https://github.com/rust-lang/rust/blob/master/library/std/src/sys/pal/unix/mod.rs>.
 const UNIX_IO_ERROR_TABLE: &[(&str, std::io::ErrorKind)] = {
     use std::io::ErrorKind::*;
     &[

src/shims/foreign_items.rs

@@ -342,7 +342,7 @@ trait EvalContextExtPriv<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> {
     /// Returns the minimum alignment for the target architecture for allocations of the given size.
     fn min_align(&self, size: u64, kind: MiriMemoryKind) -> Align {
         let this = self.eval_context_ref();
-        // List taken from `library/std/src/sys/common/alloc.rs`.
+        // List taken from `library/std/src/sys/pal/common/alloc.rs`.
         // This list should be kept in sync with the one from libstd.
         let min_align = match this.tcx.sess.target.arch.as_ref() {
             "x86" | "arm" | "mips" | "mips32r6" | "powerpc" | "powerpc64" | "wasm32" => 8,