Add integration test

Author: hankluo6

integration_tests/CMakeLists.txt

@@ -555,6 +555,7 @@ RUN(NAME test_list_pop       LABELS cpython llvm llvm_jit NOFAST) # TODO: Remove
 RUN(NAME test_list_pop2       LABELS cpython llvm llvm_jit NOFAST) # TODO: Remove NOFAST from here.
 RUN(NAME test_list_pop3      LABELS cpython llvm llvm_jit)
 RUN(NAME test_list_compare   LABELS cpython llvm llvm_jit)
+RUN(NAME test_list_compare2   LABELS cpython llvm llvm_jit)
 RUN(NAME test_list_concat    LABELS cpython llvm llvm_jit c NOFAST)
 RUN(NAME test_list_reserve   LABELS cpython llvm llvm_jit)
 RUN(NAME test_const_list     LABELS cpython llvm llvm_jit)

integration_tests/test_list_compare2.py

@@ -0,0 +1,8 @@
+from lpython import i32
+
+x: list[i32] = [1, 2, 3, 4]
+y: list[i32] = [5, 6, 7, 8]
+z: list[i32] = [1, 2, 3, 4]
+
+assert(x != y)
+assert(x == z)