Add performance.now() to the d8 shell.

test/mjsunit/mjsunit.status

Index: test/mjsunit/mjsunit.status
diff --git a/test/mjsunit/mjsunit.status b/test/mjsunit/mjsunit.status
index a7939d73bb7462b7bc4b1973af20117625c52146..5ba166f83cc2b11a1c0e9d0a3c55b24a9d612aa6 100644
--- a/test/mjsunit/mjsunit.status
+++ b/test/mjsunit/mjsunit.status
@@ -59,6 +59,10 @@
   'regress/regress-crbug-217858': [PASS, ['mode == debug', SKIP]],
 
   ##############################################################################
+  # No need to waste time for this test.
+  'd8-performance-now': [PASS, NO_VARIANTS],
+
+  ##############################################################################
   # These use a built-in that's only present in debug mode. They take
   # too long to run in debug mode on ARM and MIPS.
   'fuzz-natives-part*': [PASS, ['mode == release or arch == arm or arch == android_arm or arch == mipsel', SKIP]],