Enable Process.clock_getres MRI tests

Author: chrisseaton

test/mri/excludes/TestProcess.rb

@@ -28,15 +28,6 @@
 exclude :test_spawn_too_long_path, "unknown exec option: :rlimit_nproc"
 exclude :test_status_kill, "needs investigation"
 exclude :test_to_hash_on_arguments, "needs investigation"
-exclude :test_clock_getres, "needs investigation"
-exclude :test_clock_getres_CLOCK_BASED_CLOCK_PROCESS_CPUTIME_ID, "needs investigation"
-exclude :test_clock_getres_GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID, "needs investigation"
-exclude :test_clock_getres_GETTIMEOFDAY_BASED_CLOCK_REALTIME, "needs investigation"
-exclude :test_clock_getres_MACH_ABSOLUTE_TIME_BASED_CLOCK_MONOTONIC, "needs investigation"
-exclude :test_clock_getres_TIMES_BASED_CLOCK_MONOTONIC, "needs investigation"
-exclude :test_clock_getres_TIMES_BASED_CLOCK_PROCESS_CPUTIME_ID, "needs investigation"
-exclude :test_clock_getres_TIME_BASED_CLOCK_REALTIME, "needs investigation"
-exclude :test_clock_getres_constants, "needs investigation"
 exclude :test_daemon_default, "needs investigation"
 exclude :test_daemon_no_threads, "needs investigation"
 exclude :test_daemon_nochdir_noclose, "needs investigation"