Add test for RT #76606

S10-packages/basic.t

@@ -4,7 +4,7 @@ use v6;
 
 use Test;
 
-plan 61;
+plan 62;
 
 my regex fairly_conclusive_platform_error {:i ^\N* <<Null?>>}
 
@@ -269,4 +269,11 @@ eval_dies_ok q[
     lives_ok {Foo1::bar(); module Foo1 { our $x = 42; our sub bar() { $x.defined } }}, 'accessing module variable from within sub called from outside the module';
 }
 
+# RT #76606
+{
+    use lib 't/spec/packages';
+    lives_ok { use RT76606 },
+        'autovivification works with nested "use" directives (import from two nested files)';
+}
+
 # vim: ft=perl6

packages/RT76606.pm

@@ -0,0 +1,3 @@
+use RT76606::a;
+
+class RT76606 { }

packages/RT76606/a.pm

@@ -0,0 +1 @@
+class RT76606::a { };