[project @ 1999-07-26 15:30:29 by simonpj]

Add rnfail017

ghc/tests/rename/should_fail/rnfail016.hs

+module ShouldFail where
+
+-- !!! Pattern syntax in expressions
+
+f x = x @ x
+g x = ~ x
+h x = _
+

ghc/tests/rename/should_fail/rnfail017.hs

+module ShouldFail where
+
+-- !!! Precedence of unary negation
+
+f1 x y = x + -y 	-- Fails
+f2 x y = x * -y		-- Fails
+
+
+f3 x y = -x + y		-- OK: means  (-x) + y
+			-- since - is left associative
+
+f4 x y = - x*y		-- OK: means -(x*y)
+			-- since - binds less tightly than *
+
+f5 x y = x >= -y	-- OK means x >= (-y)
+
+

ghc/tests/rename/should_fail/rnfail017.stderr

+
+rnfail017.hs:5:
+    precedence parsing error
+	cannot mix `+' (infixl 6) and `negate' (infixl 6) in the same infix expression
+
+rnfail017.hs:6:
+    precedence parsing error
+	cannot mix `*' (infixl 7) and `negate' (infixl 6) in the same infix expression
+
+Compilation had errors
+