Add a collector to grab the bind values off the AST
Now that the bind values are being stored on the actual AST, we need a way to pull them off into the array that we were previously maintaining separately. This requires a full walk of the AST. This is an expensive operation, so I've also added a visitor for delegating to more than one visitor in a single pass.
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lib/arel/collectors/bind.rb
0 → 100644
lib/arel/collectors/composite.rb
0 → 100644
test/collectors/test_bind.rb
0 → 100644
test/collectors/test_composite.rb
0 → 100644
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