Merge master into linter.

test/completion/comprehensions.py

@@ -51,6 +51,26 @@ left
 #? int()
 [a for a in {1:'x'}][0]
 
+##? str()
+{a-1:b for a,b in {1:'a', 3:1.0}.items()}[0]
+
+# with a set literal
+#? int()
+[a for a in {1, 2, 3}][0]
+
+##? set()
+{a for a in range(10)}
+
+##? int()
+[x for x in {a for a in range(10)}][0]
+
+##? int()
+{a for a in range(10)}.pop()
+
+##? int()
+iter({a for a in range(10)}).next()
+
+
 # list comprehensions should also work in combination with functions
 def listen(arg):
     for x in arg: