[PATCH 2 of 2] test-extension: fix load path for Windows

[Matt Harbison]

# HG changeset patch
# User Matt Harbison <matt_harbison at yahoo.com>
# Date 1497067010 14400
#      Fri Jun 09 23:56:50 2017 -0400
# Node ID 22e25748e23c4fb13232a1116a61db5460a3faaf
# Parent  c0e686db51b0f071a836fbff6fa16c952252e8b9
test-extension: fix load path for Windows

The previous code was trying to load the extension from /tmp/hgtests.xxx/...,
but the actual path for tests is C:\Users\...\Temp\hgtests.xxx\...  I assume
that the former is an MSYS path that maps somewhere under C:\MinGW.

diff --git a/tests/test-extension.t b/tests/test-extension.t
--- a/tests/test-extension.t
+++ b/tests/test-extension.t
@@ -1608,7 +1608,7 @@
   (compatibility will be dropped after Mercurial-4.6, update your code.) * (glob)
 
 Make sure a broken uisetup doesn't globally break hg:
-  $ cat > baduisetup.py <<EOF
+  $ cat > $TESTTMP/baduisetup.py <<EOF
   > from mercurial import (
   >     bdiff,
   >     extensions,
@@ -1622,7 +1622,7 @@
   > EOF
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
-  > baduisetup = $PWD/baduisetup.py
+  > baduisetup = $TESTTMP/baduisetup.py
   > EOF
 
 Even though the extension fails during uisetup, hg is still basically usable: