remove test numbers

diff --git a/t/06-addsub.t b/t/addsub.t
similarity index 100%
rename from t/06-addsub.t
rename to t/addsub.t

diff --git a/t/01-basic.t b/t/basic.t
similarity index 100%
rename from t/01-basic.t
rename to t/basic.t

diff --git a/t/07-edge-cases.t b/t/edge-cases.t
similarity index 100%
rename from t/07-edge-cases.t
rename to t/edge-cases.t

diff --git a/t/02-extension.t b/t/extension.t
similarity index 100%
rename from t/02-extension.t
rename to t/extension.t

diff --git a/t/04-get.t b/t/get.t
similarity index 100%
rename from t/04-get.t
rename to t/get.t

diff --git a/t/impl-selection/10-basic-pp.t b/t/impl-selection/basic-pp.t
similarity index 100%
rename from t/impl-selection/10-basic-pp.t
rename to t/impl-selection/basic-pp.t

diff --git a/t/impl-selection/11-basic-xs.t b/t/impl-selection/basic-xs.t
similarity index 100%
rename from t/impl-selection/11-basic-xs.t
rename to t/impl-selection/basic-xs.t

diff --git a/t/impl-selection/01-choice.t b/t/impl-selection/choice.t
similarity index 100%
rename from t/impl-selection/01-choice.t
rename to t/impl-selection/choice.t

diff --git a/t/impl-selection/02-env.t b/t/impl-selection/env.t
similarity index 100%
rename from t/impl-selection/02-env.t
rename to t/impl-selection/env.t

diff --git a/t/impl-selection/03-var.t b/t/impl-selection/var.t
similarity index 100%
rename from t/impl-selection/03-var.t
rename to t/impl-selection/var.t

diff --git a/t/03-io.t b/t/io.t
similarity index 100%
rename from t/03-io.t
rename to t/io.t

diff --git a/t/05-isa.t b/t/isa.t
similarity index 100%
rename from t/05-isa.t
rename to t/isa.t

diff --git a/t/10-synopsis.t b/t/synopsis.t
similarity index 100%
rename from t/10-synopsis.t
rename to t/synopsis.t