Move tests from tests/api to harmony-tests. (Take 2)

This reverts commit d5e281743e55e1daa297fd8043b2d9b6e8e1bed2.

The makefile issue that caused the original build break
has been resolved.
diff --git a/expectations/icebox.txt b/expectations/icebox.txt
index 09e05e2..daf9af4 100644
--- a/expectations/icebox.txt
+++ b/expectations/icebox.txt
@@ -107,7 +107,7 @@
 {
   description: "a low impact bug, we can't produce tiny random, probable prime big integers",
   result: EXEC_FAILED,
-  name: "tests.api.java.math.BigIntegerTest#test_ConstructorIILjava_util_Random",
+  name: "org.apache.harmony.tests.java.math.BigIntegerTest#test_ConstructorIILjava_util_Random",
   substring: "junit.framework.AssertionFailedError: Random number one is too big"
 },
 {