Split test_policy_2.cpp into multiple smaller tests.

Fix use of long long so that code compiles with g++ -pedantic.
Update docs to match.
Fixes #1451.

[SVN r50403]

libs/math

@@ -1 +1 @@
-Subproject commit 32a9c4e02ad9901fea756c9225d1a520b0603c4a
+Subproject commit 5a2d1aae790af6cd68b1dbe1962d1f8460e51657