Auto merge of #61995 - eddyb:hir-sep-ptr, r=petrochenkov

rustc: use a separate copy of P for HIR than for AST.

Note: this currently includes/is based on top of #61987.

Like #61968, but goes one step further and uses a separate `P<...>` for the HIR, with no `Clone`, or the ability to mutate after allocation.
There is still `into_inner`/`into_iter`, but they're only exposed for `hir::lowering`, and they would take more work to untangle.

r? @petrochenkov cc @rust-lang/compiler

2 files changed, 2 insertions, 2 deletions

diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index 3fe048a6986..7353c3ec2e5 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -20,6 +20,7 @@ use rustc::mir::interpret::{GlobalId, ConstValue};
 use rustc::hir;
 use rustc::hir::def::{CtorKind, DefKind, Res};
 use rustc::hir::def_id::{CrateNum, DefId, CRATE_DEF_INDEX, LOCAL_CRATE};
+use rustc::hir::ptr::P;
 use rustc::ty::subst::{InternalSubsts, SubstsRef, UnpackedKind};
 use rustc::ty::{self, DefIdTree, TyCtxt, Region, RegionVid, Ty, AdtKind};
 use rustc::ty::fold::TypeFolder;
@@ -29,7 +30,6 @@ use syntax::ast::{self, AttrStyle, Ident};
 use syntax::attr;
 use syntax::ext::base::MacroKind;
 use syntax::source_map::{dummy_spanned, Spanned};
-use syntax::ptr::P;
 use syntax::symbol::{Symbol, kw, sym};
 use syntax::symbol::InternedString;
 use syntax_pos::{self, Pos, FileName};
diff --git a/src/librustdoc/doctree.rs b/src/librustdoc/doctree.rs
index 2557b8d1627..45a3c8a3c22 100644
--- a/src/librustdoc/doctree.rs
+++ b/src/librustdoc/doctree.rs
@@ -6,11 +6,11 @@ use syntax::ast;
 use syntax::ast::{Name, NodeId};
 use syntax::attr;
 use syntax::ext::base::MacroKind;
-use syntax::ptr::P;
 use syntax_pos::{self, Span};
 
 use rustc::hir;
 use rustc::hir::def_id::CrateNum;
+use rustc::hir::ptr::P;
 
 pub struct Module<'hir> {
     pub name: Option<Name>,