[GR-17457] Reduce the samples used in the Array#sample spec and tag as slow.

PullRequest: truffleruby/3404

Author: aardvark179

spec/ruby/core/array/sample_spec.rb

@@ -3,14 +3,14 @@
 
 describe "Array#sample" do
   it "samples evenly" do
-    ArraySpecs.measure_sample_fairness(4, 1, 4000)
-    ArraySpecs.measure_sample_fairness(4, 2, 4000)
-    ArraySpecs.measure_sample_fairness(4, 3, 4000)
-    ArraySpecs.measure_sample_fairness(40, 3, 4000)
-    ArraySpecs.measure_sample_fairness(40, 4, 4000)
-    ArraySpecs.measure_sample_fairness(40, 8, 4000)
-    ArraySpecs.measure_sample_fairness(40, 16, 4000)
-    ArraySpecs.measure_sample_fairness_large_sample_size(100, 80, 40000)
+    ArraySpecs.measure_sample_fairness(4, 1, 400)
+    ArraySpecs.measure_sample_fairness(4, 2, 400)
+    ArraySpecs.measure_sample_fairness(4, 3, 400)
+    ArraySpecs.measure_sample_fairness(40, 3, 400)
+    ArraySpecs.measure_sample_fairness(40, 4, 400)
+    ArraySpecs.measure_sample_fairness(40, 8, 400)
+    ArraySpecs.measure_sample_fairness(40, 16, 400)
+    ArraySpecs.measure_sample_fairness_large_sample_size(100, 80, 4000)
   end
 
   it "returns nil for an empty Array" do

spec/tags/core/array/sample_spec.txt

@@ -0,0 +1 @@
+slow:Array#sample samples evenly