Make V8 compilable with profiling support turned off.

tools/test.py

Index: tools/test.py
diff --git a/tools/test.py b/tools/test.py
index 810f8f6394d89b31b00a22a55a050e8c5622210c..7348c62280fb2ec540fc74f7916b862caa313413 100755
--- a/tools/test.py
+++ b/tools/test.py
@@ -1181,6 +1181,8 @@ def BuildOptions():
   result.add_option("--crankshaft",
                     help="Run with the --crankshaft flag",
                     default=False, action="store_true")
+  result.add_option("--noprof", help="Disable profiling support",
+                    default=False)
   return result
 
 
@@ -1220,6 +1222,9 @@ def ProcessOptions(options):
       options.special_command += " --crankshaft"
     else:
       options.special_command = "@--crankshaft"
+  if options.noprof:
+    options.scons_flags.append("prof=off")
+    options.scons_flags.append("profilingsupport=off")
   return True