fix(overmind): set displayName on reactions

Author: christianalfoni

packages/node_modules/overmind/src/index.ts

@@ -471,24 +471,32 @@ export default class App<
     })
     this.devtools = devtools
   }
-  private initializeReactions(configuration, eventHub, proxyStateTree, action) {
+  private initializeReactions(
+    configuration,
+    eventHub,
+    proxyStateTree,
+    actionFactory
+  ) {
     const reactions = Object.keys(configuration.reactions || {}).reduce(
       (aggr, name) => {
         if (typeof configuration.reactions[name] === 'function') {
           return Object.assign(aggr, {
-            [name]: configuration.reactions[name](
-              (stateCb, action) => [stateCb, action],
-              action
-            ),
+            [name]: configuration.reactions[name]((stateCb, action) => {
+              action.displayName = name
+              return [stateCb, action]
+            }, actionFactory),
           })
         }
 
         return Object.keys(configuration.reactions[name] || {}).reduce(
           (aggr, subName) =>
             Object.assign(aggr, {
               [name + '.' + subName]: configuration.reactions[name](
-                (stateCb, action) => [stateCb, action],
-                action
+                (stateCb, action) => {
+                  action.displayName = name + '.' + subName
+                  return [stateCb, action]
+                },
+                actionFactory
               ),
             }),
           {}