🐎 Speed up test suite by disposing Project::emitter

src/atom-environment.coffee

@@ -261,11 +261,11 @@ class AtomEnvironment extends Model
 
     @packages.reset()
 
+    @project.reset(@packages)
+
     @workspace.reset(@packages)
     @registerDefaultOpeners()
 
-    @project.reset(@packages)
-
     @views.clear()
     @registerDefaultViewProviders()
 

src/project.coffee

@@ -38,7 +38,10 @@ class Project extends Model
     @setPaths([])
 
   reset: (packageManager) ->
-    buffer.destroy() for buffer in @buffers
+    @emitter.dispose()
+    @emitter = new Emitter
+
+    buffer?.destroy() for buffer in @buffers
     @buffers = []
     @setPaths([])
     @consumeServices(packageManager)