[parsing] Allow Java 8 array constructor references

fixes #323

ChangeLog

+2020-05-14  Jesper Öqvist <jesper.oqvist@cs.lth.se>
+
+    * Fixed aspect parsing issue for Java 8 array constructor references.
+    See https://bitbucket.org/jastadd/jastadd2/issues/323/parsing-of-array-constructor-references
+
 2019-11-29  Jesper Öqvist <jesper.oqvist@cs.lth.se>
 
     * Deprecated some old options: lazyMaps, private, traceVisitCheck,

src/javacc/jrag/Jrag.jjt

@@ -2179,6 +2179,7 @@ void PrimarySuffix() :
   LOOKAHEAD(3)
   "." TypeArguments() JavaIdentifier()
 |
+  LOOKAHEAD(2)
   "[" Expression() "]"
 |
   "." JavaIdentifier()
@@ -2190,6 +2191,10 @@ void PrimarySuffix() :
 |
   LOOKAHEAD(2)
   "::" JavaIdentifier()
+|
+  // Array constructor reference
+  LOOKAHEAD(2)
+  "[" "]" "::" "new"
 }
 
 void Literal() :