Restore the optimization options that we've been using for the 1.8 branch to the trunk, rather than just using -O. b=365974 r=preed

tools/tinderbox-configs/firefox/linux/CLOBBER

@@ -0,0 +1 @@
+bug 365974 - generate new nightly with new optimization options

tools/tinderbox-configs/firefox/linux/mozconfig

@@ -13,7 +13,7 @@ ac_add_options --enable-application=browser
 ac_add_options --enable-update-channel=nightly
 ac_add_options --enable-update-packaging
 
-ac_add_options --enable-optimize
+ac_add_options --enable-optimize="-Os -freorder-blocks -fno-reorder-functions -gstabs+"
 ac_add_options --disable-debug
 ac_add_options --disable-tests
 #not yet
@@ -26,4 +26,4 @@ ac_add_options --enable-default-toolkit=cairo-gtk2
 ac_add_options --enable-static
 ac_add_options --disable-shared
 
-ac_add_options --enable-codesighs
+ac_add_options --enable-codesighs