Refactor Examples to use assert_eq

This commit updates all example files to use `assert_eq!` for verifying
output, replacing the previous `Output:` comments. This change makes the
examples more robust and self-testing.

The benchmark results in some examples have also been slightly adjusted,
reflecting minor performance variations after the refactoring.

Additionally, a runtime panic handling mechanism has been introduced in
the VM for function calls, which improves error reporting for unexpected
panics.

examples/data.myc

@@ -1,7 +1,6 @@
 ;; Complex Data Structure Test
-;; Benchmark: 33.5us
-;; Benchmark-Repeat: 62
-;; Output: {:name "Fibonacci", :input 10, :output 55}
+;; Benchmark: 36.6us
+;; Benchmark-Repeat: 55
 (do
   (def fib (fn [n]
     (if (< n 2)
@@ -9,12 +8,12 @@
       (+ (fib (- n 1)) (fib (- n 2))))))
 
   (def result (fib 10))
-  
+
   (def data {
     :name "Fibonacci"
     :input 10
     :output result
   })
-  
-  data
+
+  (assert-eq {:name "Fibonacci" :input 10 :output 55} data)
 )