50671: enable spell check in *.ztst by vim

ChangeLog

@@ -1,3 +1,7 @@
+2022-09-29  Jun-ichi Takimoto  <takimoto-j@kba.biglobe.ne.jp>
+
+	* 50671: Util/ztst-syntax.vim: enable spell check in *.ztst
+
 2022-09-28  Eric Cook  <llua@gmx.com>
 	* Bart Schaefer: 50399: Completion/Base/Widget/_complete_debug
 	Properly local scope PS4 change

Util/ztst-syntax.vim

@@ -36,7 +36,7 @@ syn match  ztstPayload             /^\s.*/ contains=@zsh
 syn match  ztstExitCode            /^\d\+\|^-/                nextgroup=ztstFlags
 syn match  ztstFlags               /[.dDqf]*:/      contained nextgroup=ztstTestName contains=ztstColon
 syn match  ztstColon               /:.\@=/          contained
-syn region ztstTestName            start=// end=/$/ contained 
+syn region ztstTestName            start=// end=/$/ contained contains=@Spell
 
 syn match  ztstInputMarker         /^<.\@=/                   nextgroup=ztstInput
 syn region ztstInput               start=// end=/$/ contained
@@ -54,7 +54,7 @@ syn match  ztstErrputLiteral       /^[?].\@=/                 nextgroup=ztstErrp
 syn region ztstErrput              start=// end=/$/ contained
 
 syn match  ztstFrequentExplanationMarker /^F:/                nextgroup=ztstFrequentExplanation
-syn region ztstFrequentExplanation start=// end=/$/ contained
+syn region ztstFrequentExplanation start=// end=/$/ contained contains=@Spell
 
 syn match  ztstDirective           /^%.*/