Support passing keywords from inside a function

(was previously only working at the global scope)

src/analysis/scoping_analysis.cpp

@@ -159,7 +159,7 @@ public:
     virtual bool visit_if(AST_If* node) { return false; }
     virtual bool visit_ifexp(AST_IfExp* node) { return false; }
     virtual bool visit_index(AST_Index* node) { return false; }
-    // virtual bool visit_keyword(AST_keyword *node) { return false; }
+    virtual bool visit_keyword(AST_keyword *node) { return false; }
     virtual bool visit_list(AST_List* node) { return false; }
     virtual bool visit_listcomp(AST_ListComp* node) { return false; }
     // virtual bool visit_module(AST_Module *node) { return false; }

test/tests/func_arg_passing.py

-def f(a, b, c):
-    print a, b, c
+def f():
+    def f1(a, b, c):
+        print a, b, c
 
-f(1, 2, 3)
-f(1, b=2, c=3)
-f(1, b=2, c=3)
-f(1, c=2, b=3)
+    f1(1, 2, 3)
+    f1(1, b=2, c=3)
+    f1(1, b=2, c=3)
+    f1(1, c=2, b=3)
 
-f(1, b="2", c=3)
-f(1, b=2, c="3")
-f(1, c="2", b=3)
-f(1, c=2, b="3")
+    f1(1, b="2", c=3)
+    f1(1, b=2, c="3")
+    f1(1, c="2", b=3)
+    f1(1, c=2, b="3")
 
-def f(*args, **kw):
-    print args, kw
+    def f2(*args, **kw):
+        print args, kw
 
-f()
-f(1)
-f(1, 2)
-f((1, 2))
-f(*(1, 2))
-f({1:2}, b=2)
+    f2()
+    f2(1)
+    f2(1, 2)
+    f2((1, 2))
+    f2(*(1, 2))
+    f2({1:2}, b=2)
 
-def f(a=1, b=2, **kw):
-    print a, b, kw
+    def f3(a=1, b=2, **kw):
+        print a, b, kw
 
-f(b=3, c=4)
-f(b=3, a=4)
-f(b=2, **{'c':3})
+    f3(b=3, c=4)
+    f3(b=3, a=4)
+    f3(b=2, **{'c':3})
+f()