Add exec testcases group 5

exec/array_index_access_order.mj

+class B {
+    public static void main(String[] args) {
+        int[] i = new int[4];
+        int x = 0;
+        while(x < 4) {
+            i[x] = (x = x + 1);
+        }
+        x = 0;
+        while(x < 4) {
+            System.out.println(i[(x = x + 1)]);
+        }
+
+    }
+
+}
\ No newline at end of file

exec/array_index_access_order.mj.out

+1
+2
+3
+4
\ No newline at end of file

exec/fib.mj

+class Fib {
+    public int fib(int n) {
+        if(n < 2) {
+            return n;
+        }
+        return fib(n - 1) + fib(n - 2);
+    }
+
+    public static void main(String[] args) {
+        Fib fib = new Fib();
+        System.out.println(fib.fib(24));
+    }
+
+
+}
\ No newline at end of file

exec/fib.mj.out

+46368
\ No newline at end of file

exec/inline.mj

+class Foo {
+    public Bar bar() {
+        return new Bar();
+    }
+    public static void main(String[] args) {
+        System.out.println(new Foo().bar().baz().x);
+    }
+}
+class Bar {
+    public Baz baz() {
+        Baz baz = new Baz();
+        baz.x = 42;
+        return baz;
+    }
+}
+
+class Baz {
+    public int x;
+}
+

exec/inline.mj.out

+42
\ No newline at end of file

exec/neg_min_int.mj

+class B {
+    public static void main(String[] args) {
+        int min = -2147483648;
+        int neg_min = -min;
+        System.out.println(neg_min);
+     }
+}
\ No newline at end of file

exec/neg_min_int.out

+-2147483648
\ No newline at end of file

exec/overflow.mj

+class B {
+    public static void main(String[] args) {
+        int max = 2147483647;
+        System.out.println(max + 1);
+     }
+}
\ No newline at end of file

exec/overflow.mj.out

+-2147483648

exec/recursive_field.mj

+class A {
+    public boolean b;
+    public int x;
+    public A a;
+
+
+    public static void main(String[] args) {
+        A a = new A();
+        a.x = 7;
+        a.a = a;
+        System.out.println(a.a.a.x);
+    }
+
+}
\ No newline at end of file

exec/recursive_field.mj.out

+7
\ No newline at end of file

exec/short_circuit_prevent_nullptr.mj

+class A {
+    public boolean c;
+    public static void main(String[] args) {
+        boolean b = true;
+        A a = null;
+        if(b || a.c) {
+            System.out.println(3);
+        }
+    }
+
+}
\ No newline at end of file

exec/short_circuit_prevent_nullptr.mj.out

+3
\ No newline at end of file

exec/system_shadowing.java

+class Main {
+	public SystemClass System;
+	
+	public static void main(String[] arguments) {
+		Main args = new Main();
+		args.System = new SystemClass();
+		args.System.out = new SystemClass();
+		args.test();
+	}
+	
+	public void test() {
+		System.out.println(0);
+	}
+}
+
+class SystemClass {
+	public SystemClass out;
+	
+	public void println(int num) {
+		System.out.println(42);
+	}
+}
\ No newline at end of file

exec/system_shadowing.java.out

+42