Rename to

src/librustc_mir/const_eval.rs

@@ -337,7 +337,7 @@ impl<'mir, 'tcx> interpret::Machine<'mir, 'tcx> for CompileTimeInterpreter<'mir,
                 // Some functions we support even if they are non-const -- but avoid testing
                 // that for const fn!  We certainly do *not* want to actually call the fn
                 // though, so be sure we return here.
-                return if ecx.hook_fn(instance, args, dest)? {
+                return if ecx.hook_panic_fn(instance, args, dest)? {
                     ecx.goto_block(ret)?; // fully evaluated and done
                     Ok(None)
                 } else {

src/librustc_mir/interpret/intrinsics.rs

@@ -354,9 +354,10 @@ impl<'mir, 'tcx, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
         Ok(true)
     }
 
-    /// "Intercept" a function call because we have something special to do for it.
+    /// "Intercept" a function call to a panic-related function
+    /// because we have something special to do for it.
     /// Returns `true` if an intercept happened.
-    pub fn hook_fn(
+    pub fn hook_panic_fn(
         &mut self,
         instance: ty::Instance<'tcx>,
         args: &[OpTy<'tcx, M::PointerTag>],