syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // normalizing the LHS of the projection until it is a rigid projection
context_before:             // We simply emit an `alias-eq` goal here, since that will take care of
context_after:             // (or a not-yet-defined opaque in scope).