syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // Instrument the lowered RHS's value for condition coverage.
context_before:                     this.expr_into_dest(destination, continuation, rhs).into_block();
context_after:                 // (Does nothing if condition coverage is not enabled.)