Add quote-syntax and #%plain-module-begin to kernel-form-identifier-list

pkgs/racket-doc/syntax/scribblings/kerncase.scrbl

@@ -66,4 +66,7 @@ In addition to the identifiers listed in @secref[#:doc '(lib
 "scribblings/reference/reference.scrbl") "fully-expanded"], the list
 includes @racket[letrec-syntaxes+values], which is the core form for
 local expand-time binding and can appear in the result of
-@racket[local-expand].}
+@racket[local-expand].
+
+@history[#:changed "6.90.0.27" @elem{Added @racket[quote-syntax] and @racket[#%plain-module-begin] to
+                                     the list, which had previously been unintentionally missing.}]}

racket/collects/syntax/kerncase.rkt

@@ -102,6 +102,7 @@
                 case-lambda
                 if
                 quote
+                quote-syntax
                 letrec-syntaxes+values
                 with-continuation-mark
                 #%expression
@@ -109,6 +110,7 @@
                 #%top
                 #%datum
                 #%variable-reference
+                #%plain-module-begin
                 module module* #%provide #%require #%declare))))
 
   (provide kernel-syntax-case