Engine: Add support for disabling debug spans in ERBBlockNode via comments

lib/herb/engine/debug_visitor.rb

@@ -304,7 +304,9 @@ def in_excluded_context?
         excluded_tags = ["script", "style", "head", "textarea", "pre"]
         return true if excluded_tags.any? { |tag| @element_stack.include?(tag) }
 
-        return true if @erb_block_stack.any? { |node| javascript_tag?(node.content.value.strip) }
+        if @erb_block_stack.any? { |node| javascript_tag?(node.content.value.strip) || include_debug_disable_comment?(node.content.value.strip) }
+          return true
+        end
 
         false
       end
@@ -355,6 +357,14 @@ def javascript_tag?(code)
 
         false
       end
+
+      def include_debug_disable_comment?(code)
+        cleaned_code = code.strip.gsub(/\s+/, " ")
+
+        return true if cleaned_code.match?(/#\s*herb:debug\sdisable\s*$/)
+
+        false
+      end
     end
   end
 end

test/engine/debug_mode_test.rb

@@ -402,5 +402,25 @@ class DebugModeTest < Minitest::Spec
 
       assert_compiled_snapshot(template, debug: true)
     end
+
+    test "block without debug disable comment content erb expressions get debug spans" do
+      template = <<~ERB
+        <%= content_for :sidebar do %>
+          <div><%= "Sidebar content" %></div>
+        <% end %>
+      ERB
+
+      assert_compiled_snapshot(template, debug: true)
+    end
+
+    test "block with debug disable comment content erb expressions do NOT get debug spans" do
+      template = <<~ERB
+        <%= content_for :sidebar do # herb:debug disable %>
+          <div><%= "Sidebar content" %></div>
+        <% end %>
+      ERB
+
+      assert_compiled_snapshot(template, debug: true)
+    end
   end
 end