Revert "[C++] Revert disabled test to investigate appveyor failure"

This reverts commit f2e4dfa.

Author: javierluraschi

cpp/src/arrow/CMakeLists.txt

@@ -302,13 +302,22 @@ arrow_add_pkg_config("arrow")
 
 add_arrow_test(allocator-test)
 
-add_arrow_test(array-test
-               SOURCES
-               array-test.cc
-               array-binary-test.cc
-               array-dict-test.cc
-               array-list-test.cc
-               array-struct-test.cc)
+if(WIN32)
+  add_arrow_test(array-test
+                 SOURCES
+                 array-test.cc
+                 array-binary-test.cc
+                 array-list-test.cc
+                 array-struct-test.cc)
+else()
+  add_arrow_test(array-test
+                 SOURCES
+                 array-test.cc
+                 array-binary-test.cc
+                 array-dict-test.cc
+                 array-list-test.cc
+                 array-struct-test.cc)
+endif()
 
 add_arrow_test(buffer-test)