const_to_pat: cleanup leftovers from when we had to deal with non-structural constants
diff --git a/Cargo.lock b/Cargo.lock
index 2d3bc59..1c1607e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4411,6 +4411,7 @@
 name = "rustc_mir_build"
 version = "0.0.0"
 dependencies = [
+ "either",
  "itertools",
  "rustc_apfloat",
  "rustc_arena",