Function my_conv2d() missing from call graph

[khatchad]

Highly related to #307. This is what I am seeing in the CSVs:

subject	function	module	relative path	refactoring	severity	code	message
samples	my_conv2d	trial03	tensorflow_weight_sharing/trial03.py	OPTIMIZE_HYBRID_FUNCTION	3	3	Can't infer side-effects, most likely due to a call graph issue caused by a decorator or a missing function call.
samples	my_conv2d	trial03	tensorflow_weight_sharing/trial03.py	OPTIMIZE_HYBRID_FUNCTION	3	10	Can't infer tensor parameters for this function.
samples	my_conv2d	trial03	tensorflow_weight_sharing/trial03.py	OPTIMIZE_HYBRID_FUNCTION	3	11	Can't infer primitive parameters for this function.

But, my_conv2d() is called by indirectly by the model functions, I believe, but it isn't done through a callable. Instead, I believe it to be called by one of the other model functions here:

https://github.com/ponder-lab/samples/blob/39f7644391e664244b45c90868c804abad923eb3/tensorflow_weight_sharing/trial03.py#L98-L104

[khatchad]

It's called here: https://github.com/ponder-lab/samples/blob/39f7644391e664244b45c90868c804abad923eb3/tensorflow_weight_sharing/trial03.py#L99 by keras.engine.training.Model.build():

self.call(x, **kwargs)

[khatchad]

Technically, this would be blocked by wala/ML#107.