add back Foo.custom-tag to syntax tests

Author: tsnobip

jscomp/syntax/tests/printer/expr/expected/jsx.res.txt

@@ -5,6 +5,7 @@ let x = <Foo.Bar.Baz className="container" />
 let x = <Foo.bar className="container" />
 let x = <Foo.baz className="multiline" />
 let x = <custom-tag className="container" />
+let x = <Foo.custom-tag className="container" />
 
 // https://github.com/rescript-lang/syntax/issues/570
 let x =
@@ -41,6 +42,11 @@ let x =
     {a}
     <B />
   </custom-tag>
+let x =
+  <Foo.custom-tag className="container">
+    {a}
+    <B />
+  </Foo.custom-tag>
 
 let x = <div className="container" className2="container2" className3="container3" onClick />
 

jscomp/syntax/tests/printer/expr/jsx.res

@@ -7,6 +7,7 @@ let x = <Foo.baz
  className="multiline"
 />
 let x = <custom-tag className="container" />
+let x = <Foo.\"custom-tag" className="container" />
 
 // https://github.com/rescript-lang/syntax/issues/570
 let x = <A> <B> <C> <D /> <E /> </C> <F> <G /> <H /> </F> </B> </A>
@@ -15,6 +16,7 @@ let x = <A> <B/> {children} </A>
 let x = <A> {a} </A>
 let x = <A> {a} {b} </A>
 let x = <custom-tag className="container" > {a} <B/> </custom-tag>
+let x = <Foo.\"custom-tag" className="container" > {a} <B/> </Foo.\"custom-tag">
 
 let x =
   <div