Rename Proxy to Wrapper

src/spectator/dsl.cr

@@ -52,14 +52,14 @@ module Spectator
       let!({{name}}!) {{block}}
 
       module Context
-        @_%proxy : ValueProxy?
+        @_%wrapper : ValueWrapper?
 
         def {{name.id}}
-          if (proxy = @_%proxy)
-            proxy.as(TypedValueProxy(typeof({{name.id}}!))).value
+          if (wrapper = @_%wrapper)
+            wrapper.as(TypedValueWrapper(typeof({{name.id}}!))).value
           else
             {{name.id}}!.tap do |value|
-              @_%proxy = TypedValueProxy(typeof({{name.id}}!)).new(value)
+              @_%wrapper = TypedValueWrapper(typeof({{name.id}}!)).new(value)
             end
           end
         end

src/spectator/typed_value_wrapper.cr

@@ -1,7 +1,7 @@
-require "./value_proxy"
+require "./value_wrapper"
 
 module Spectator
-  class TypedValueProxy(T) < ValueProxy
+  class TypedValueWrapper(T) < ValueWrapper
     getter value : T
 
     def initialize(@value : T)

src/spectator/value_wrapper.cr

@@ -2,7 +2,7 @@ module Spectator
   # Base class for proxying test values to examples.
   # This abstraction is required for inferring types.
   # The `DSL#let` macro makes heavy use of this.
-  private abstract class ValueProxy
+  private abstract class ValueWrapper
     # Retrieves the underlying value.
     abstract def value
   end