Move preprocessor tests into canonical test subdir structure.

[SVN r44385]

libs/preprocessor

@@ -1 +1 @@
-Subproject commit aba62cac02cb2971566f821eb23083c6f2a0dd46
+Subproject commit 485db8aef503c45e293bc23bfd139a6f810f92e4

status/Jamfile.v2

@@ -69,6 +69,7 @@ build-project ../libs/multi_index/test ;       # test-suite multi_index
 build-project ../libs/optional/test ;          # test-suite optional
 build-project ../libs/parameter/test ;         # test-suite parameter
 build-project ../libs/pool/test ;              # test-suite pool
+build-project ../libs/preprocessor/test ;      # test-suite preprocessor
 build-project ../libs/program_options/test ;   # test-suite program_options
 build-project ../libs/property_map/test ;      # test-suite property_map
 build-project ../libs/ptr_container/test ;     # test-suite ptr_container
@@ -146,23 +147,6 @@ explicit unit_test_framework ;
           [ compile-fail libs/config/test/threads/test_thread_fail2.cpp ]
         ;
 
-    test-suite preprocessor
-        : [ compile libs/preprocessor/test/arithmetic.cpp ]
-          [ compile libs/preprocessor/test/array.cpp ]
-          [ compile libs/preprocessor/test/comparison.cpp ]
-          [ compile libs/preprocessor/test/control.cpp ]
-          [ compile libs/preprocessor/test/debug.cpp ]
-          [ compile libs/preprocessor/test/facilities.cpp ]
-          [ compile libs/preprocessor/test/iteration.cpp ]
-          [ compile libs/preprocessor/test/list.cpp ]
-          [ compile libs/preprocessor/test/logical.cpp ]
-          [ compile libs/preprocessor/test/repetition.cpp ]
-          [ compile libs/preprocessor/test/selection.cpp ]
-          [ compile libs/preprocessor/test/seq.cpp ]
-          [ compile libs/preprocessor/test/slot.cpp ]
-          [ compile libs/preprocessor/test/tuple.cpp ]
-        ;
-
     test-suite rational
         : [ run libs/rational/rational_example.cpp ]
           [ run libs/rational/rational_test.cpp unit_test_framework ]