Rename rustc_middle::Ty::is_unsafe_ptr to is_raw_ptr

The wording unsafe pointer is less common and not mentioned in a lot of
places, instead this is usually called a "raw pointer". For the sake of
uniformity, we rename this method.
This came up during the review of
rust-lang/rust#134424.

Author: 1c3t3a

clippy_lints/src/casts/cast_ptr_alignment.rs

@@ -66,7 +66,7 @@ fn is_used_as_unaligned(cx: &LateContext<'_>, e: &Expr<'_>) -> bool {
             if matches!(name.ident.as_str(), "read_unaligned" | "write_unaligned")
                 && let Some(def_id) = cx.typeck_results().type_dependent_def_id(parent.hir_id)
                 && let Some(def_id) = cx.tcx.impl_of_method(def_id)
-                && cx.tcx.type_of(def_id).instantiate_identity().is_unsafe_ptr()
+                && cx.tcx.type_of(def_id).instantiate_identity().is_raw_ptr()
             {
                 true
             } else {

clippy_lints/src/dereference.rs

@@ -682,7 +682,7 @@ fn try_parse_ref_op<'tcx>(
             },
             [arg],
         ) => (true, typeck.qpath_res(path, *hir_id).opt_def_id()?, arg),
-        ExprKind::Unary(UnOp::Deref, sub_expr) if !typeck.expr_ty(sub_expr).is_unsafe_ptr() => {
+        ExprKind::Unary(UnOp::Deref, sub_expr) if !typeck.expr_ty(sub_expr).is_raw_ptr() => {
             return Some((RefOp::Deref, sub_expr));
         },
         ExprKind::AddrOf(BorrowKind::Ref, mutability, sub_expr) => return Some((RefOp::AddrOf(mutability), sub_expr)),

clippy_lints/src/multiple_unsafe_ops_per_block.rs

@@ -122,7 +122,7 @@ fn collect_unsafe_exprs<'tcx>(
                 unsafe_ops.push(("access of a mutable static occurs here", expr.span));
             },
 
-            ExprKind::Unary(UnOp::Deref, e) if cx.typeck_results().expr_ty_adjusted(e).is_unsafe_ptr() => {
+            ExprKind::Unary(UnOp::Deref, e) if cx.typeck_results().expr_ty_adjusted(e).is_raw_ptr() => {
                 unsafe_ops.push(("raw pointer dereference occurs here", expr.span));
             },
 

clippy_lints/src/pass_by_ref_or_value.rs

@@ -179,10 +179,10 @@ impl PassByRefOrValue {
                         && let hir::TyKind::Ref(_, MutTy { ty: decl_ty, .. }) = input.kind
                     {
                         if let Some(typeck) = cx.maybe_typeck_results() {
-                            // Don't lint if an unsafe pointer is created.
-                            // TODO: Limit the check only to unsafe pointers to the argument (or part of the argument)
+                            // Don't lint if a raw pointer is created.
+                            // TODO: Limit the check only to raw pointers to the argument (or part of the argument)
                             //       which escape the current function.
-                            if typeck.node_types().items().any(|(_, &ty)| ty.is_unsafe_ptr())
+                            if typeck.node_types().items().any(|(_, &ty)| ty.is_raw_ptr())
                                 || typeck
                                     .adjustments()
                                     .items()

clippy_lints/src/ptr_offset_with_cast.rs

@@ -111,7 +111,7 @@ fn is_expr_ty_usize(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
 
 // Is the type of the expression a raw pointer?
 fn is_expr_ty_raw_ptr(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
-    cx.typeck_results().expr_ty(expr).is_unsafe_ptr()
+    cx.typeck_results().expr_ty(expr).is_raw_ptr()
 }
 
 fn build_suggestion(

clippy_utils/src/eager_or_lazy.rs

@@ -217,7 +217,7 @@ fn expr_eagerness<'tcx>(cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) -> EagernessS
                     self.eagerness |= NoChange;
                 },
                 // Dereferences should be cheap, but dereferencing a raw pointer earlier may not be safe.
-                ExprKind::Unary(UnOp::Deref, e) if !self.cx.typeck_results().expr_ty(e).is_unsafe_ptr() => (),
+                ExprKind::Unary(UnOp::Deref, e) if !self.cx.typeck_results().expr_ty(e).is_raw_ptr() => (),
                 ExprKind::Unary(UnOp::Deref, _) => self.eagerness |= NoChange,
                 ExprKind::Unary(_, e)
                     if matches!(

clippy_utils/src/visitors.rs

@@ -417,7 +417,7 @@ pub fn is_expr_unsafe<'tcx>(cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) -> bool {
         }
         fn visit_expr(&mut self, e: &'tcx Expr<'_>) -> Self::Result {
             match e.kind {
-                ExprKind::Unary(UnOp::Deref, e) if self.cx.typeck_results().expr_ty(e).is_unsafe_ptr() => {
+                ExprKind::Unary(UnOp::Deref, e) if self.cx.typeck_results().expr_ty(e).is_raw_ptr() => {
                     ControlFlow::Break(())
                 },
                 ExprKind::MethodCall(..)