Merge pull request #6547 from dotty-staging/fix-xml-block

Add missing XMLBlock

Author: liufengyun

compiler/src/dotty/tools/dotc/parsing/xml/SymbolicXMLBuilder.scala

@@ -163,7 +163,7 @@ class SymbolicXMLBuilder(parser: Parser, preserveWS: Boolean)(implicit ctx: Cont
     val buffer = ValDef(_buf, TypeTree(), New(_scala_xml_NodeBuffer, ListOfNil))
     val applies = args filterNot isEmptyText map (t => Apply(Select(Ident(_buf), _plus), List(t)))
 
-    atSpan(span)( Block(buffer :: applies.toList, Ident(_buf)) )
+    atSpan(span)(new XMLBlock(buffer :: applies.toList, Ident(_buf)) )
   }
 
   /** Returns (Some(prefix) | None, rest) based on position of ':' */

tests/pos/xml-attribute-block.scala

@@ -0,0 +1,3 @@
+class Foo {
+  <foo a="hello &name; aaa"/>
+}