Update example output comments

Add `Output` comments to the example files to reflect the actual output
of the programs. This helps with verifying correctness and understanding
example behavior.

examples/optimizer_repro.myc

@@ -1,5 +1,6 @@
 ;; Benchmark: 172ns
 ;; Benchmark-Repeat: 11766
+;; Output: [42 150]
 (do
   ;; 1. Provokation Stack-Gap (bei Optimization Level 2)
   (def result