add track_caller to some interpreter functions

Author: RalfJung

compiler/rustc_const_eval/src/interpret/operand.rs

@@ -71,6 +71,7 @@ impl<'tcx, Tag: Provenance> Immediate<Tag> {
     }
 
     #[inline]
+    #[track_caller]
     pub fn to_scalar_or_uninit(self) -> ScalarMaybeUninit<Tag> {
         match self {
             Immediate::Scalar(val) => val,
@@ -79,11 +80,13 @@ impl<'tcx, Tag: Provenance> Immediate<Tag> {
     }
 
     #[inline]
+    #[track_caller]
     pub fn to_scalar(self) -> InterpResult<'tcx, Scalar<Tag>> {
         self.to_scalar_or_uninit().check_init()
     }
 
     #[inline]
+    #[track_caller]
     pub fn to_scalar_or_uninit_pair(self) -> (ScalarMaybeUninit<Tag>, ScalarMaybeUninit<Tag>) {
         match self {
             Immediate::ScalarPair(val1, val2) => (val1, val2),
@@ -92,6 +95,7 @@ impl<'tcx, Tag: Provenance> Immediate<Tag> {
     }
 
     #[inline]
+    #[track_caller]
     pub fn to_scalar_pair(self) -> InterpResult<'tcx, (Scalar<Tag>, Scalar<Tag>)> {
         let (val1, val2) = self.to_scalar_or_uninit_pair();
         Ok((val1.check_init()?, val2.check_init()?))