Suppress some warnings on visual c++ 7.1.

[SVN r57921]

test/unordered/bucket_tests.cpp

@@ -11,6 +11,11 @@
 #include "../helpers/random_values.hpp"
 #include "../helpers/helpers.hpp"
 
+#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
+#pragma warning(disable:4267) // conversion from 'size_t' to 'unsigned int',
+                              // possible loss of data.
+#endif
+
 namespace bucket_tests {
 
 test::seed_t seed(54635);