syntax: add regression test for recent 'not not x' parser bug
This test exercises a case that would not have been fixed
by the proposed solution (#128), which allowed any number
of not operators to be applied to a primary (such as True)
but did not allow multiple not operators on other expressions
(such as the binary operator 1 >= 1).
Change-Id: Ide956076bb868b834f3613e2ca1203a54610cfae
diff --git a/testdata/bool.sky b/testdata/bool.sky
index 4e6e622..f6adf06 100644
--- a/testdata/bool.sky
+++ b/testdata/bool.sky
@@ -6,6 +6,7 @@
assert.true(True)
assert.true(not False)
assert.true(not not True)
+assert.true(not not 1 >= 1)
# bool conversion
assert.eq(
