Add skip_all_if_miniperl() to test.pl, and use it in 6 test scripts

All require dynamic loading to work, so all should be skipped under minitest.

1 files changed, 1 insertions, 0 deletions

diff --git a/t/io/iofile.t b/t/io/iofile.t
index 9a5b278289..f2ac66fb9c 100644
--- a/t/io/iofile.t
+++ b/t/io/iofile.t
@@ -4,6 +4,7 @@ BEGIN {
     chdir 't' if -d 't';
     @INC = '../lib';
     require './test.pl';
+    skip_all_if_miniperl("miniperl can't load IO::File");
 }
 
 $|  = 1;