fix: Support new style of functions syntax in appmap.yml

Author: dividedmind

lib/appmap/config.rb

@@ -366,7 +366,7 @@ def load(config_data)
               # hook config.
               declare_hook(hook_decl)
             end
-          end
+          end.flatten
         end
 
         config_params[:packages] = \

spec/config_spec.rb

@@ -11,6 +11,10 @@
       functions: [
         {
           name: 'pkg/cls#fn',
+        },
+        {
+          methods: ['cls#new_fn'],
+          path: 'pkg'
         }
       ]
     }.deep_stringify_keys!
@@ -64,6 +68,15 @@
               "fn"
             ]
           }
+        },
+        {
+          "cls": "cls",
+          "target_methods": {
+            "package": "pkg",
+            "method_names": [
+              "new_fn"
+            ]
+          }
         }
       ],
       "builtin_hooks": {
@@ -195,6 +208,12 @@
             "method_names": [
               "fn"
             ]
+          },
+          {
+            "package": "pkg",
+            "method_names": [
+              "new_fn"
+            ]
           }
         ],
         "ActiveSupport::Callbacks::CallbackSequence": [