Accept TyCtxt instead of TyCtxtAt in Ty::is_* functions

Functions in answer:

- `Ty::is_freeze`
- `Ty::is_sized`
- `Ty::is_unpin`
- `Ty::is_copy_modulo_regions`

compiler/rustc_const_eval/src/transform/check_consts/qualifs.rs

@@ -8,7 +8,6 @@ use rustc_infer::infer::TyCtxtInferExt;
 use rustc_middle::mir;
 use rustc_middle::mir::*;
 use rustc_middle::ty::{self, subst::SubstsRef, AdtDef, Ty};
-use rustc_span::DUMMY_SP;
 use rustc_trait_selection::traits::{
     self, ImplSource, Obligation, ObligationCause, SelectionContext,
 };
@@ -92,7 +91,7 @@ impl Qualif for HasMutInterior {
     }
 
     fn in_any_value_of_ty<'tcx>(cx: &ConstCx<'_, 'tcx>, ty: Ty<'tcx>) -> bool {
-        !ty.is_freeze(cx.tcx.at(DUMMY_SP), cx.param_env)
+        !ty.is_freeze(cx.tcx, cx.param_env)
     }
 
     fn in_adt_inherently<'tcx>(

compiler/rustc_const_eval/src/transform/check_consts/resolver.rs

@@ -8,7 +8,6 @@ use rustc_middle::mir::{self, BasicBlock, Local, Location, Statement, StatementK
 use rustc_mir_dataflow::fmt::DebugWithContext;
 use rustc_mir_dataflow::JoinSemiLattice;
 use rustc_mir_dataflow::{Analysis, AnalysisDomain, CallReturnPlaces};
-use rustc_span::DUMMY_SP;
 
 use std::fmt;
 use std::marker::PhantomData;
@@ -120,10 +119,7 @@ where
     ///
     /// [rust-lang/unsafe-code-guidelines#134]: https://github.com/rust-lang/unsafe-code-guidelines/issues/134
     fn shared_borrow_allows_mutation(&self, place: mir::Place<'tcx>) -> bool {
-        !place
-            .ty(self.ccx.body, self.ccx.tcx)
-            .ty
-            .is_freeze(self.ccx.tcx.at(DUMMY_SP), self.ccx.param_env)
+        !place.ty(self.ccx.body, self.ccx.tcx).ty.is_freeze(self.ccx.tcx, self.ccx.param_env)
     }
 }