no Perl6/World.nqp in warning

When one module is used in another, with $!foo is rw trait.

RT#126302: https://rt.perl.org/Ticket/Display.html?id=126302

S10-packages/use-with-class.t

@@ -7,7 +7,7 @@ use Test;
 
 # L<S11/Compile-time Importation>
 
-plan 9;
+plan 11;
 
 # test that 'use' imports class names defined in imported packages
 
@@ -53,4 +53,13 @@ ok Stupid::Class.new(), 'can instantiate object of "imported" class';
     lives-ok { class Bar { } }, 'declaring a class after use-ing a module (RT #73910)'
 }
 
+# RT #126302
+{
+    my $p = run :out, :err, $*EXECUTABLE, '-It/spec/packages', '-e',
+        'use RT126302; say "RT126302-OK"';
+
+    like   $p.out.slurp-rest, /'RT126302-OK'/, 'packages compile successfully'; unlike $p.err.slurp-rest, /'src/Perl6/World.nqp'/,
+        'no Perl6/World.nqp in warning';
+}
+
 # vim: ft=perl6

packages/RT126302.pm6

@@ -0,0 +1,2 @@
+no precompilation;
+class RT126302 { use RT126302::B; }

packages/RT126302/B.pm6

@@ -0,0 +1,2 @@
+no precompilation;
+class RT126302::B { has $!foo is rw; }