use `TypingEnv` when no `infcx` is available

the behavior of the type system not only depends on the current
assumptions, but also the currentnphase of the compiler. This is
mostly necessary as we need to decide whether and how to reveal
opaque types. We track this via the `TypingMode`.

1 files changed, 1 insertions, 8 deletions

diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs
index f01ac305d3f..2083279e128 100644
--- a/compiler/rustc_middle/src/mir/syntax.rs
+++ b/compiler/rustc_middle/src/mir/syntax.rs
@@ -20,7 +20,7 @@ use smallvec::SmallVec;
 use super::{BasicBlock, Const, Local, UserTypeProjection};
 use crate::mir::coverage::CoverageKind;
 use crate::ty::adjustment::PointerCoercion;
-use crate::ty::{self, GenericArgsRef, List, Region, Ty, TyCtxt, UserTypeAnnotationIndex};
+use crate::ty::{self, GenericArgsRef, List, Region, Ty, UserTypeAnnotationIndex};
 
 /// Represents the "flavors" of MIR.
 ///
@@ -100,13 +100,6 @@ impl MirPhase {
             MirPhase::Runtime(RuntimePhase::Optimized) => "runtime-optimized",
         }
     }
-
-    pub fn param_env<'tcx>(&self, tcx: TyCtxt<'tcx>, body_def_id: DefId) -> ty::ParamEnv<'tcx> {
-        match self {
-            MirPhase::Built | MirPhase::Analysis(_) => tcx.param_env(body_def_id),
-            MirPhase::Runtime(_) => tcx.param_env_reveal_all_normalized(body_def_id),
-        }
-    }
 }
 
 /// See [`MirPhase::Analysis`].