Add back deprecated values.

Author: MrAlias

semconv/helpers.j2

@@ -85,13 +85,17 @@ func {{to_go_name(attribute.name)}}(val {{attribute.type | instantiated_type | m
 
 {%- macro generate_vars(group) -%}
 {#- Render values for enums #}
-{%- for attribute in group.attributes if not attribute.deprecated %}
+{%- for attribute in group.attributes %}
 {%- if attribute is enum %}
 
 {{ ["Enum values for " ~ attribute.name] | comment(format="go") }}
 var (
-{%- for value in attribute.type.members if not value.deprecated %}
+{%- for value in attribute.type.members %}
+{%- if value.deprecated %}
+{{ ["Deprecated: " ~ value.deprecated | trim(".") ~ "." ] | comment(format="go_1tab") }}
+{%- else %}
 {{ [value.brief or value.id, "Stability: " ~ value.stability] | comment(format="go_1tab") }}
+{%- endif %}
 	{{to_go_name(attribute.name ~ "." ~ value.id)}} = {{ to_go_name(attribute.name) }}Key.{{attribute.type | instantiated_type | map_text("attribute_type_method")}}({{ value.value | print_member_value }})
 {%- endfor %}
 )