test: fix filter-build test and bugs

The tests for checking the filter build recompile and are successfull.

Changes:
  - spotted a couple of bugs for adding the arguments in the filter
  - readded function `filter_flush_args` to flush_args; this is needed
    to distinguish when the arguments belong to the same block or are different
    entries to the same syscall
  - build the filter in a way that CMP_EQ corresponds to BPF_JEQ and we
    don't need to awkwardly negate the operations (still TODO for AND_EQ)

1 files changed, 1 insertions, 0 deletions

diff --git a/cooker/match.c b/cooker/match.c
index c1f5fa8..c83f9fe 100644
--- a/cooker/match.c
+++ b/cooker/match.c
@@ -381,6 +381,7 @@ void handle_matches(struct gluten_ctx *g, JSON_Value *value)
 
 				filter_notify(call->number);
 				parse_match(g, args, call->args);
+				filter_flush_args(call->number);
 
 				break;
 			}