Update crates/rust-analyzer/src/cli/analysis_stats.rs

Co-authored-by: Laurențiu Nicola <lnicola@users.noreply.github.com>

crates/rust-analyzer/src/cli/analysis_stats.rs

@@ -318,6 +318,6 @@ pub fn analysis_stats(
 fn shuffle<T>(rng: &mut Rand32, slice: &mut [T]) {
     for i in (1..slice.len()).rev() {
         let idx = rng.rand_range(0..i as u32) as usize;
-        slice.swap(idx, i - 1)
+        slice.swap(idx, i)
     }
 }