syntax_data: {"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // branch, so it can be removed. If false, the match pair is _compatible_
context_before:         // If true, the match pair is completely entailed by its corresponding test
context_after:         // with its test branch, but still needs a more specific test.