[PATCH] run-tests.py: force test-import-modules.t to run in the beginning

[Siddharth Agarwal]

# HG changeset patch
# User Siddharth Agarwal <sid0 at fb.com>
# Date 1427489465 25200
#      Fri Mar 27 13:51:05 2015 -0700
# Node ID bc4b5976a2474029a8fe1133b5666e811a1de2ee
# Parent  d9674bec56ff82499822987f6fa79286b434038e
run-tests.py: force test-import-modules.t to run in the beginning

This is a short file that takes a very long time to run. The scaling factor of
10 wasn't enough to make it run towards the beginning, so increase it to 100.

On a 16-core, 32-thread machine, ./run-tests.py -j32 went down from 2:30 to
1:48.

diff --git a/tests/run-tests.py b/tests/run-tests.py
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -1592,7 +1592,7 @@
             random.shuffle(tests)
         else:
             # keywords for slow tests
-            slow = 'svn gendoc check-code-hg'.split()
+            slow = 'svn gendoc check-code-hg test-module-imports'.split()
             def sortkey(f):
                 # run largest tests first, as they tend to take the longest
                 try:
@@ -1603,7 +1603,7 @@
                     return -1e9 # file does not exist, tell early
                 for kw in slow:
                     if kw in f:
-                        val *= 10
+                        val *= 100
                 return val
             tests.sort(key=sortkey)