Throw useful error with .new with no args on natives

This form never worked, so we don't need to bother passing it
via deprecation period. Just start throwing same error all forms
will be throwing once deprecation period expires.

src/Perl6/Metamodel/NativeHOW.nqp

@@ -116,7 +116,7 @@ class Perl6::Metamodel::NativeHOW
     method method_table($obj) {
         nqp::hash('new',
           nqp::getstaticcode(sub (*@_,*%_) {
-              # nqp::die('Cannot instantiate a native type');
+              @_[1] // nqp::die('Cannot instantiate a native type');
               nqp::getlexcaller('&DEPRECATED')(
                   '(my ' ~ @_[0].HOW.name(@_[0]) ~ ' $ = ' ~ @_[1].perl() ~ ')',
                   '2017.09.403',

t/05-messages/01-errors.t

@@ -262,7 +262,7 @@ throws-like ｢callframe.callframe(1).my.perl｣, X::NYI,
 
 
 subtest '.new on native types works (deprecated; will die)' => {
-    plan 9;
+    plan 18;
 
     die "Time to remove deprecation and make .new on ints die"
         if $*PERL.compiler.version after v2017.12.50;
@@ -286,6 +286,18 @@ subtest '.new on native types works (deprecated; will die)' => {
 
     is-deeply str.new('x'), 'x', 'str';
 
+    throws-like { int  .new }, Exception, :message{.contains: "Cannot instantiate"}, 'int no args';
+    throws-like { int8 .new }, Exception, :message{.contains: "Cannot instantiate"}, 'int8 no args';
+    throws-like { int16.new }, Exception, :message{.contains: "Cannot instantiate"}, 'int16 no args';
+    throws-like { int32.new }, Exception, :message{.contains: "Cannot instantiate"}, 'int32 no args';
+    throws-like { int64.new }, Exception, :message{.contains: "Cannot instantiate"}, 'int64 no args';
+
+    throws-like { num  .new }, Exception, :message{.contains: "Cannot instantiate"}, 'num no args';
+    throws-like { num32.new }, Exception, :message{.contains: "Cannot instantiate"}, 'num32 no args';
+    throws-like { num64.new }, Exception, :message{.contains: "Cannot instantiate"}, 'num64 no args';
+
+    throws-like { str.new   }, Exception, :message{.contains: "Cannot instantiate"}, 'str no args';
+
     # throws-like { int  .new: 4   }, Exception, 'int';
     # throws-like { int8 .new: 4   }, Exception, 'int8';
     # throws-like { int16.new: 4   }, Exception, 'int16';