fix array and hash constants, now seperated out

test/cases/array_constant/array_list.tst

@@ -1,6 +1,5 @@
 [42, foo]
 -- -- --
-s(:expressions, 
-  s(:array, 
-    s(:int,  42), 
-    s(:name,  :foo)))
+s(:array,
+  s(:int, 42),
+  s(:name, :foo))

test/cases/array_constant/array_ops.tst

@@ -1,11 +1,10 @@
 [ 3 + 4 , foo(22) ]
 -- -- --
-s(:expressions, 
-  s(:array, 
-    s(:operator,  "+", 
-      s(:int,  3), 
-      s(:int,  4)), 
-    s(:call, 
-      s(:name,  :foo), 
-      s(:arguments, 
-        s(:int,  22)))))
+s(:array,
+  s(:operator_value, :+,
+    s(:int, 3),
+    s(:int, 4)),
+  s(:call,
+    s(:name, :foo),
+    s(:arguments,
+      s(:int, 22))))

test/cases/array_constant/one_array.tst

@@ -1,5 +1,4 @@
 [42]
 -- -- --
-s(:expressions, 
-  s(:array, 
-    s(:int,  42)))
+s(:array,
+  s(:int, 42))