Adjust imports and do some cleanup

src/spectator/core/configuration.cr

@@ -1,4 +1,4 @@
-require "../formatters/dots_formatter"
+require "../formatters/*"
 require "./hooks"
 require "./sandbox"
 

src/spectator/core/context_hook.cr

@@ -38,8 +38,8 @@ module Spectator::Core
       io << "#<" << self.class << ' '
 
       case @position
-      in Position::Before then io << "before context"
-      in Position::After  then io << "after context"
+      in .before? then io << "before context"
+      in .after?  then io << "after context"
       end
 
       if location = @location

src/spectator/core/example.cr

@@ -1,5 +1,4 @@
 require "./item"
-require "./location_range"
 require "./result"
 
 module Spectator::Core

src/spectator/core/example_hook.cr

@@ -36,9 +36,9 @@ module Spectator::Core
       io << "#<" << self.class << ' '
 
       case @position
-      in Position::Before then io << "before example"
-      in Position::After  then io << "after example"
-      in Position::Around then io << "around example"
+      in .before? then io << "before example"
+      in .after?  then io << "after example"
+      in .around? then io << "around example"
       end
 
       if location = @location

src/spectator/core/location_range.cr

@@ -1,3 +1,5 @@
+require "./location"
+
 module Spectator::Core
   # Information about a range in the source code.
   struct LocationRange

src/spectator/formatters/common_text_output.cr

@@ -1,3 +1,4 @@
+require "../assertion_failed"
 require "../core/execution_result"
 require "../core/source_cache"
 

src/spectator/formatters/junit/test_case.cr

@@ -1,3 +1,4 @@
+require "../../assertion_failed"
 require "./xml_element"
 
 module Spectator::Formatters::JUnit

src/spectator/matchers/custom.cr

@@ -1,5 +1,3 @@
-require "./matcher"
-
 module Spectator::Matchers
   module CustomDSL
     macro match(*, block = false, &impl)

src/spectator/matchers/expect.cr

@@ -1,4 +1,3 @@
-require "../assertion_failed"
 require "../core/location_range"
 require "./matcher"
 

src/spectator/matchers/matcher.cr

@@ -1,3 +1,7 @@
+require "../assertion_failed"
+require "../core/location_range"
+require "../framework_error"
+
 module Spectator::Matchers
   module Matcher
     abstract def matches?(actual_value) : Bool

src/spectator/matchers/negated.cr

@@ -1,3 +1,5 @@
+require "../framework_error"
+
 module Spectator::Matchers
   struct NegatedMatcher(T)
     def initialize(@matcher : T)

src/spectator/matchers/should_methods.cr

@@ -1,3 +1,4 @@
+require "../core/location_range"
 require "./matcher"
 
 module Spectator::Matchers