tests/basics: Add tests for equality between bool and int/float/complex.

False/True should be implicitly converted to 0/1 when compared with numeric
types.

tests/basics/set_basic.py

@@ -10,6 +10,10 @@ print(sorted(s))
 s = {1 + len(s)}
 print(s)
 
+# bools mixed with integers
+s = {False, True, 0, 1, 2}
+print(len(s))
+
 # Sets are not hashable
 try:
     {s: 1}