FileCheck array_index.

Author: cjgillot

tests/mir-opt/const_prop/array_index.rs

@@ -1,9 +1,11 @@
-// skip-filecheck
-// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 // unit-test: ConstProp
+// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
 
 // EMIT_MIR array_index.main.ConstProp.diff
 fn main() {
+    // CHECK-LABEL: fn main(
+    // CHECK: debug x => [[x:_.*]];
+    // CHECK: [[x]] = const 2_u32;
     let x: u32 = [0, 1, 2, 3][2];
 }