fix: antlr#2826 Go template is incorrect for dynamic scopes

closes antlr#2826
obviates PR antlr#3101

Signed-off-by: Jim.Idle <jimi@gatherstars.com>
Signed-off-by: Eric Vergnaud <eric.vergnaud@wanadoo.fr>

tool/resources/org/antlr/v4/tool/templates/codegen/Go/Go.stg

@@ -906,8 +906,8 @@ ThisRulePropertyRef_text(r) ::= "p.GetTokenStream().GetTextFromTokens(localctx.G
 ThisRulePropertyRef_ctx(r) ::= "<ctx(r)>"
 ThisRulePropertyRef_parser(r) ::= "p"
 
-NonLocalAttrRef(s) ::= "GetInvokingContext(<s.ruleIndex>).<s.escapedName>"
-SetNonLocalAttr(s, rhsChunks) ::= "GetInvokingContext(<s.ruleIndex>).<s.escapedName> = <rhsChunks>"
+NonLocalAttrRef(s) ::= "p.GetInvokingContext(<s.ruleIndex>).(*<s.ruleName; format={cap}>Context).<s.escapedName>"
+SetNonLocalAttr(s, rhsChunks) ::= "p.GetInvokingContext(<s.ruleIndex>).(*<s.ruleName; format={cap}>Context).<s.escapedName> = <rhsChunks>"
 
 AddToLabelList(a) ::= "<ctx(a.label)>.<a.listName> = append(<ctx(a.label)>.<a.listName>, <labelref(a.label)>)"