MatchCase
Generated from the engine's own definition: compute-engine's symbol, which we neither extend nor document by hand. No examples yet — the crosswalk is the reason it has a page.
A case of a `Match`: `MatchCase(pattern, body)` or `MatchCase(pattern, guard, body)`. The pattern holds engine wildcards; the body references the bound capture names.
MatchCase(expression, expression, expression?) -> nothingas compute-engine declares it