ENH: Add NAME mode to ADD_TEST command

This creates command mode add_test(NAME ...).  This signature is
extensible with more keyword arguments later.  The main purpose is to
enable automatic replacement of target names with built target file
locations.  A side effect of this feature is support for tests that only
run under specific configurations.

Tests/Testing/CMakeLists.txt

@@ -1,7 +1,7 @@
 #
 # Testing
 #
-cmake_minimum_required (VERSION 2.6)
+cmake_minimum_required (VERSION 2.7)
 PROJECT (Testing)
 
 #
@@ -52,3 +52,9 @@ ADD_TEST(testing.1 ${Testing_BINARY_DIR}/bin/testing)
 # skip level test
 #
 ADD_SUBDIRECTORY(Sub/Sub2)
+
+# Per-config target name test.
+ADD_EXECUTABLE(perconfig perconfig.c)
+SET_PROPERTY(TARGET perconfig PROPERTY RELEASE_POSTFIX -opt)
+SET_PROPERTY(TARGET perconfig PROPERTY DEBUG_POSTFIX -dbg)
+ADD_TEST(NAME testing.perconfig COMMAND perconfig)

Tests/Testing/perconfig.c

@@ -0,0 +1,4 @@
+int main()
+{
+  return 0;
+}