Correct the order in which OutputDirectory and IntermediateDirectory are defined.

pylib/gyp/generator/make.py

Index: pylib/gyp/generator/make.py
===================================================================
--- pylib/gyp/generator/make.py	(revision 1364)
+++ pylib/gyp/generator/make.py	(working copy)
@@ -1796,7 +1796,7 @@
 
 
   def WriteXcodeEnv(self, target, env):
-    for k in gyp.xcode_emulation.TopologicallySortedEnvVarKeys(env):
+    for k in reversed(gyp.xcode_emulation.TopologicallySortedEnvVarKeys(env)):

[Nico, 2012/05/11 14:53:44]

When refactoring a function (gyp.xcode_emu.TopSortEnvVarKeys), try not to change
its interface. Then you don't need to change this file (and any of the other
calling sites you changed).

[bradn, 2012/05/11 18:57:23]

So I had been "correcting" what I had perceived as an inversion of "canonical"
definitions of the directionality of edges for variable dependencies.
Some informal polling of folks around me, that my sense of  is in fact
non-universal (its about a 50% 50% split :-).
Sorry for the confusion.
As such, keeping the current function signatures makes sense.
I've switched to that and added more clarifying comments.
I've ended up keeping the edge directions flipped from before (but hid
internally with a reverse) as its easier to find all variable references in a
one string.

       # For
       #  foo := a\ b
       # the escaped space does the right thing. For