micropython: add micropython component

components/language/micropython/tests/basics/fun_calldblstar3.py

@@ -0,0 +1,17 @@
+# test passing a user-defined mapping as the argument to **
+
+def foo(**kw):
+    print(sorted(kw.items()))
+
+class Mapping:
+    def keys(self):
+        # the long string checks the case of string interning
+        return ['a', 'b', 'c', 'abcdefghijklmnopqrst']
+
+    def __getitem__(self, key):
+        if key == 'a':
+            return 1
+        else:
+            return 2
+
+foo(**Mapping())