use SIGNAL_HANDLER REEEEEE (#59242)

makes as many procs as i can find use the SIGNAL_HANDLER define which i assumed they all already did

code/modules/research/anomaly/explosive_compressor.dm

@@ -178,6 +178,7 @@
  * Checks whether an internal explosion was sufficient to compress the core.
  */
 /obj/machinery/research/explosive_compressor/proc/check_test(atom/source, list/arguments)
+	SIGNAL_HANDLER
 	. = COMSIG_CANCEL_EXPLOSION
 	if(!inserted_core)
 		test_status = "ERROR: No core present during detonation."