Anonymize dependencies during packing

Switch on 'anonymous' dependency packing -- with this option, there are two types of TES objects packed:

1. those that are explicitly (directly) requested (because eg. a trigger line requests a certain (list of) TES location(s), or they are 'always' requested (such at MC relations))
2. objects which are referenced by other objects already selected to be packed

With this MR, 1. can be requested to be unpacked, and if in doing so, items from 2. are needed, those will be put in the TES in some 'anonymized' location, as typically not the entire container was packed (because then they would be in category 1 by construction). As such, the (unpacked) containers in 2. can not be used 'as if' they were the (entire) original content of the TES at the moment of writing -- only those elements (indirectly) referred to by objects from 1. will appear. Hence the TES location of the objects in 2. is irrelevant, and if they would appear in the same location as when the data was written would generate false expectations of their content.

Goes together with LHCb!4136 (merged) and LHCb!4149 (merged)

Hlt/Hlt2Conf/options/hlt2_check_output.py

@@ -31,7 +31,11 @@ from GaudiConf.reading import load_manifest
 
 
 def error(msg):
-    print("Hlt2CheckOutput ERROR", msg)
+    print("Hlt2CheckOutput ERROR: ", msg)
+
+
+def warning(msg):
+    print("Hlt2CheckOutput WARNING: ", msg)
 
 
 LHCbApp(
@@ -58,6 +62,12 @@ input_file = sys.argv[1]
 input_type = "ROOT" if input_file.find(".dst") != -1 else "RAW"
 IOHelper(input_type).inputFiles([input_file], clear=True)
 
+stream = None
+if input_file.startswith('sprucing'): stream = 'Sprucing'
+if input_file.startswith('turbo'): stream = 'Turbo'
+if not stream:
+    warning(f'could not determine stream type from file name: {input_file}')
+
 appMgr = GP.AppMgr()
 TES = appMgr.evtsvc()
 appMgr.run(1)
@@ -79,6 +89,10 @@ while TES['/Event']:
     decRep = TES[str(decdecoder.OutputHltDecReportsLocation)].decReports()
 
     for name, report in decRep.items():
+        # for _these_ tests: Hlt2Topo is in 'Spruce' and the rest in 'Turbo' _if_ (and only if) we could recognize the stream
+        # TODO: could also check that the particles are _not_ present when in the 'other' stream(s)...
+        if stream == 'Sprucing' and not name.startswith("Hlt2Topo"): continue
+        if stream == 'Turbo' and name.startswith("Hlt2Topo"): continue
         if report.decision():
             print('Checking line {}'.format(name))
             prefix = '/Event/HLT2/{}'.format(name[:-len("Decision")])