Have the DSL builder produce a test suite

src/spectator.cr

@@ -74,9 +74,8 @@ module Spectator
 
   # Builds the tests and runs the framework.
   private def self.run
-    # Build the root-level example group and run it.
-    group = ::Spectator::DSL::Builder.build
-    suite = ::Spectator::TestSuite.new(group)
+    # Build the test suite and run it.
+    suite = ::Spectator::DSL::Builder.build
     Runner.new(suite).run
   rescue ex
     # Catch all unhandled exceptions here.

src/spectator/dsl/builder.cr

@@ -91,10 +91,11 @@ module Spectator::DSL
       current_group.add_around_each_hook(block)
     end
 
-    # Builds the entire spec and returns it as a group.
+    # Builds the entire spec and returns it as a test suite.
     # This should be called only once after the entire spec has been defined.
-    protected def build : ExampleGroup
-      root_group.build(Internals::SampleValues.empty)
+    protected def build : TestSuite
+      group = root_group.build(Internals::SampleValues.empty)
+      TestSuite.new(group)
     end
   end
 end