Enable and fix array literal assertion test

Uncommented the array literal assertion in both the compiler test and the test case file. Updated JIT code generation to use gen_copy for array initialization, ensuring correct handling of array literals.

Author: wtholliday

src/compiler.rs

@@ -335,14 +335,14 @@ mod tests {
         jit(code);
     }
 
-     #[test]
+    #[test]
     fn test_array_literal() {
         let code = r#"
             assert(cond: bool) → void
 
             main {
                 var a = [42]
-                // assert(a[0] == 42)
+                assert(a[0] == 42)
             }
         "#;
 

src/jit.rs

@@ -392,7 +392,7 @@ impl<'a> FunctionTranslator<'a> {
 
                 if let Some(init_id) = init {
                     let init_value = self.translate_expr(*init_id, decl, decls);
-                    self.builder.ins().stack_store(init_value, slot, 0);
+                    self.gen_copy(*ty, addr, init_value, decls);
                 }
 
                 self.builder.ins().iconst(I32, 0)

tests/cases/arrays/array_literal.lyte

@@ -5,5 +5,5 @@ assert(cond: bool) → void
 
 main {
     var a = [42]
-    // assert(a[0] == 42)
+    assert(a[0] == 42)
 }