Missing inline snippets should display same error as filebased

lib/liquid/locales/en.yml

@@ -34,3 +34,5 @@
       render: "Argument error in tag 'render' - Dynamically chosen templates are not allowed"
     disabled:
       tag: "usage is not allowed in this context"
+    file_system:
+      includes: "This liquid context does not allow includes"

lib/liquid/snippet_drop.rb

@@ -2,12 +2,13 @@
 
 module Liquid
   class SnippetDrop < Drop
-    attr_reader :body, :name
+    attr_reader :body, :name, :filename
 
-    def initialize(body, name)
+    def initialize(body, name, filename)
       super()
       @body = body
       @name = name
+      @filename = filename
     end
 
     def to_partial

lib/liquid/tags/render.rb

@@ -51,16 +51,16 @@ module Liquid
 
       if template.respond_to?(:to_partial)
         partial = template.to_partial
-        template_name = template.name
+        template_name = template.filename
+        context_variable_name = @alias_name || template.name
       elsif @template_name_expr.is_a?(String)
         partial = PartialCache.load(template, context: context, parse_context: parse_context)
         template_name = partial.name
+        context_variable_name = @alias_name || template_name.split('/').last
       else
-        raise ::ArgumentError, parse_context.locale.t("errors.argument.render")
+        raise Liquid::ArgumentError, parse_context.locale.t("errors.file_system.includes")
       end
 
-      context_variable_name = @alias_name || template_name.split('/').last
-
       render_partial_func = ->(var, forloop) {
         inner_context               = context.new_isolated_subcontext
         inner_context.template_name = template_name

lib/liquid/tags/snippet.rb

@@ -26,7 +26,7 @@ module Liquid
     end
 
     def render_to_output_buffer(context, output)
-      snippet_drop = SnippetDrop.new(@body, @to)
+      snippet_drop = SnippetDrop.new(@body, @to, context.template_name)
       context.scopes.last[@to] = snippet_drop
       context.resource_limits.increment_assign_score(assign_score_of(snippet_drop))
       output