Pass test context to registry

src/spectator/harness.cr

@@ -59,7 +59,7 @@ module Spectator
     # The example the harness is for should be passed in.
     private def initialize(@example)
       @reporter = Expectations::ExpectationReporter.new
-      @mocks = Mocks::Registry.new(@example.group.context.stubs)
+      @mocks = Mocks::Registry.new(@example.group.context)
     end
   end
 end

src/spectator/mocks/registry.cr

@@ -10,8 +10,8 @@ module Spectator::Mocks
     @all_instances = {} of String => Entry
     @entries = {} of Key => Entry
 
-    def initialize(default_stubs)
+    def initialize(context : TestContext)
-      @all_instances = default_stubs.map do |k, v|
+      @all_instances = context.stubs.map do |k, v|
         entry = Entry.new
         entry.stubs.concat(v)
         {k, entry}