Changed simplify_match output query because it had become outdated

Author: felix91gr

src/test/mir-opt/simplify_match.rs

@@ -1,7 +1,7 @@
 #[inline(never)]
 fn noop() {}
 
-// EMIT_MIR rustc.main.SimplifyBranches-after-copy-prop.diff
+// EMIT_MIR rustc.main.ConstProp.diff
 fn main() {
  match { let x = false; x } {
  true => noop(),

src/test/mir-opt/simplify_match/rustc.main.SimplifyBranches-after-copy-prop.diff renamed to src/test/mir-opt/simplify_match/rustc.main.ConstProp.diff

@@ -1,5 +1,5 @@
-- // MIR for `main` before SimplifyBranches-after-copy-prop
-+ // MIR for `main` after SimplifyBranches-after-copy-prop
+- // MIR for `main` before ConstProp
++ // MIR for `main` after ConstProp
 
  fn main() -> () {
  let mut _0: (); // return place in scope 0 at $DIR/simplify_match.rs:5:11: 5:11
@@ -19,15 +19,23 @@
  // mir::Constant
  // + span: $DIR/simplify_match.rs:6:21: 6:26
  // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
- _1 = const false; // scope 1 at $DIR/simplify_match.rs:6:28: 6:29
- // ty::Const
- // + ty: bool
- // + val: Value(Scalar(0x00))
- // mir::Constant
- // + span: $DIR/simplify_match.rs:6:28: 6:29
- // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
+- _1 = _2; // scope 1 at $DIR/simplify_match.rs:6:28: 6:29
++ _1 = const false; // scope 1 at $DIR/simplify_match.rs:6:28: 6:29
++ // ty::Const
++ // + ty: bool
++ // + val: Value(Scalar(0x00))
++ // mir::Constant
++ // + span: $DIR/simplify_match.rs:6:28: 6:29
++ // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
  StorageDead(_2); // scope 0 at $DIR/simplify_match.rs:6:30: 6:31
- goto -> bb1; // scope 0 at $DIR/simplify_match.rs:7:9: 7:13
+- switchInt(_1) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/simplify_match.rs:7:9: 7:13
++ switchInt(const false) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/simplify_match.rs:7:9: 7:13
++ // ty::Const
++ // + ty: bool
++ // + val: Value(Scalar(0x00))
++ // mir::Constant
++ // + span: $DIR/simplify_match.rs:7:9: 7:13
++ // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
  }
 
  bb1: {