TEST: Use InOut in generics_02 test case

Author: ubaidsk

integration_tests/generics_02.py

@@ -1,13 +1,13 @@
-from lpython import TypeVar
+from lpython import TypeVar, InOut
 
 T = TypeVar('T')
 
-def swap(x: T, y: T):
+def swap(x: InOut[T], y: InOut[T]):
     temp: T
     temp = x
     x = y
     y = temp
     print(x)
     print(y)
 
-swap(1,2)
+swap(1,2)