[oe] getVar. setVar, "d", etc.

[Rich Pixley]

When does d change?

I've got the following bb file which produces results which puzzle me.  
What I'm seeing is that the two values for d are different instances and 
that the second function doesn't see the variable which was set in the 
first because they're using different dictionaries.

--rich

def setting(d):

    import bb

    print "setting sets in ", d, "\n"

    bb.data.setVar('FOO', 'bar', d)

    return "setting"

X := ${@setting(d)}

def getting(d):

    import bb

    got = bb.data.getVar('FOO', d)

    print "getting gets %s from " % (got), d, "\n"

    return "getting"

Y := ${@getting(d)}