Tests: Simplify RunCMake.SymlinkTrees per-case implementation

Avoid needing a `.cmake` file named for every case.

Tests/RunCMake/SymlinkTrees/CMakeLists.txt

@@ -1,3 +1,9 @@
 cmake_minimum_required(VERSION 2.8.12)
 project(${RunCMake_TEST} NONE)
-include("${include_dir}/${RunCMake_TEST}.cmake")
+
+message(STATUS "source: '${CMAKE_SOURCE_DIR}'")
+message(STATUS "binary: '${CMAKE_BINARY_DIR}'")
+get_filename_component(real_source "${CMAKE_SOURCE_DIR}" REALPATH)
+get_filename_component(real_binary "${CMAKE_BINARY_DIR}" REALPATH)
+message(STATUS "real source: '${real_source}'")
+message(STATUS "real binary: '${real_binary}'")

Tests/RunCMake/SymlinkTrees/PrintTrees.cmake

@@ -1,6 +0,0 @@
-message(STATUS "source: '${CMAKE_SOURCE_DIR}'")
-message(STATUS "binary: '${CMAKE_BINARY_DIR}'")
-get_filename_component(real_source "${CMAKE_SOURCE_DIR}" REALPATH)
-get_filename_component(real_binary "${CMAKE_BINARY_DIR}" REALPATH)
-message(STATUS "real source: '${real_source}'")
-message(STATUS "real binary: '${real_binary}'")

Tests/RunCMake/SymlinkTrees/RunCMakeTest.cmake

@@ -13,8 +13,6 @@ function (run_symlink_test name)
   set(RunCMake_TEST_BINARY_DIR "${RunCMake_BINARY_DIR}/${name}/binary")
   # Emulate a shell using this directory.
   set(ENV{PWD} "${RunCMake_TEST_BINARY_DIR}")
-  set(RunCMake_TEST_OPTIONS
-    "-Dinclude_dir:PATH=${CMAKE_CURRENT_LIST_DIR}")
   run_cmake("${name}_symlinks")
 endfunction ()
 

Tests/RunCMake/SymlinkTrees/common_symlinks.cmake

@@ -1 +0,0 @@
-include("${CMAKE_CURRENT_LIST_DIR}/PrintTrees.cmake")