Add missing cases in specialChildren
Add missing cases in specialChildren

Namely:
1) function body and optional params
2) object locals

google/go-jsonnet,sbarzowski/go-jsonnet,sbarzowski/go-jsonnet,google/go-jsonnet,google/go-jsonnet,sbarzowski/go-jsonnet,google/go-jsonnet,sbarzowski/go-jsonnet,google/go-jsonnet,sbarzowski/go-jsonnet