Fix typos

tests/unit/slithir/test_implicit_returns.py

@@ -28,7 +28,7 @@ def test_named_return_with_explicit_return(slither_from_source) -> None:
         node_if: Node = f.nodes[1]
         node_true = node_if.son_true
         node_false = node_if.son_false
-        assert node_true == NodeType.RETURN
+        assert node_true.type == NodeType.RETURN
         assert isinstance(node_true.irs[0], Return)
         assert node_true.irs[0].values[0] == f.get_local_variable_from_name("x")
         assert len(node_true.sons) == 0
@@ -51,7 +51,7 @@ def test_issue_1846_ternary_in_ternary(slither_from_source):
     with slither_from_source(source) as slither:
         c: Contract = slither.get_contract_from_name("Contract")[0]
         f = c.functions[0]
-        node_end_if = f.nodes[5]
+        node_end_if = f.nodes[3]
         assert node_end_if.type == NodeType.ENDIF
         assert len(node_end_if.sons) == 1
         node_ret = node_end_if.sons[0]