Crash invoking a @body argument with the wrong number of parameters.

releasenotes.md

@@ -32,6 +32,7 @@
 - Bug with casting anyfault to error.
 - Lambda / function type would accidentally be processed as a method.
 - Fix error message when not finding a particular function.
+- Crash invoking a `@body` argument with the wrong number of parameters.
 
 ### Stdlib changes
 - Additional init functions for hashmap.

src/compiler/sema_expr.c

@@ -2374,6 +2374,7 @@ static bool sema_call_analyse_body_expansion(SemaContext *macro_context, Expr *c
 	if (expressions != vec_size(body_parameters))
 	{
 		PRINT_ERROR_AT(call, "Expected %d parameter(s) to %s.", vec_size(body_parameters), body_decl->name);
+		return false;
 	}
 	Expr **args = call_expr->arguments;