Python: Reorganize PyYAML tests a bit

Author: RasmusWL

python/ql/test/experimental/library-tests/frameworks/yaml/Decoding.py

@@ -6,20 +6,32 @@
 yaml.unsafe_load(payload) # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML decodeMayExecuteInput
 yaml.full_load(payload) # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML decodeMayExecuteInput
 
-# Safe
+# Safe:
 yaml.load(payload, yaml.SafeLoader)  # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML
 yaml.load(payload, Loader=yaml.SafeLoader)  # $decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML
 yaml.load(payload, yaml.BaseLoader)  # $decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML
 yaml.safe_load(payload) # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML
 
+################################################################################
 # load_all variants
+################################################################################
+
+# Unsafe:
 yaml.load_all(payload) # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML decodeMayExecuteInput
-yaml.safe_load_all(payload) # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML
 yaml.unsafe_load_all(payload) # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML decodeMayExecuteInput
 yaml.full_load_all(payload) # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML decodeMayExecuteInput
 
+# Safe:
+yaml.safe_load_all(payload) # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML
+
+################################################################################
 # C-based loaders with `libyaml`
+################################################################################
+
+# Unsafe:
 yaml.load(payload, yaml.CLoader)  # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML decodeMayExecuteInput
 yaml.load(payload, yaml.CFullLoader)  # $ decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML decodeMayExecuteInput
+
+# Safe:
 yaml.load(payload, yaml.CSafeLoader)  # $decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML
 yaml.load(payload, yaml.CBaseLoader)  # $decodeInput=payload decodeOutput=Attribute() decodeFormat=YAML