avoid thread switching.

The test may fail if thread switches to d or e before assertions.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35423 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_thread.rb

@@ -439,9 +439,14 @@ class TestThread < Test::Unit::TestCase
     assert(c.stop?)
 
     d.kill
-    assert_equal(["aborting", false], [d.status, d.stop?])
+    # to avoid thread switching...
+    ds1 = d.status
+    ds2 = d.stop?
+    es1 = e.status
+    es2 = e.stop?
+    assert_equal(["aborting", false], [ds1, ds2])
 
-    assert_equal(["run", false], [e.status, e.stop?])
+    assert_equal(["run", false], [es1, es2])
 
   ensure
     a.kill if a