Consistently use '\n' in outputted code

All generated C code uses `\n` line separators, except some in `gof/op.py` when on Windows. This fixes it. Strangely, this also fixes the issue I described in [#5464](/Theano/Theano/issues/5463#issuecomment-279826487).

Consistently use '\n' in outputted code
97141b93 · valtron · GitHub · de09b396 · 97141b93
--- a/theano/gof/op.py
+++ b/theano/gof/op.py
@@ -1216,7 +1216,7 @@ def apply_meth(tag):
            code = self.code_sections[tag]

            define_macros, undef_macros = self.get_c_macros(node, name)
-            return os.linesep.join(['', define_macros, code,
+            return '\n'.join(['', define_macros, code,
                                    undef_macros])
        else:
            raise utils.MethodNotDefined(
@@ -1458,7 +1458,7 @@ class COp(Op):
            define_macros.append(define_template % (n, v))
            undef_macros.append(undef_template % (n,))

-        return os.linesep.join(define_macros), os.linesep.join(undef_macros)
+        return '\n'.join(define_macros), '\n'.join(undef_macros)

    def _lquote_macro(self, txt):
        res = []
@@ -1466,7 +1466,7 @@ class COp(Op):
        for l in spl[:-1]:
            res.append(l + ' \\')
        res.append(spl[-1])
-        return os.linesep.join(res)
+        return '\n'.join(res)

    def get_sub_macros(self, sub):
        define_macros = []
@@ -1478,7 +1478,7 @@ class COp(Op):
            define_macros.append("#define PARAMS %s" % (sub['params'],))
            undef_macros.append("#undef PARAMS")

-        return os.linesep.join(define_macros), os.linesep.join(undef_macros)
+        return '\n'.join(define_macros), '\n'.join(undef_macros)

    def get_io_macros(self, inputs, outputs):
        define_macros = []
@@ -1503,7 +1503,7 @@ class COp(Op):
            def_macros, undef_macros = self.get_c_macros(node, name)
            def_sub, undef_sub = self.get_sub_macros(sub)

-            return os.linesep.join(['', def_macros, def_sub,
+            return '\n'.join(['', def_macros, def_sub,
                                    op_code,
                                    undef_sub, undef_macros])
        else:
@@ -1543,7 +1543,7 @@ class COp(Op):
                def_sub, undef_sub = self.get_sub_macros(sub)
                def_io, undef_io = self.get_io_macros(inp, out)

-                return os.linesep.join([def_macros, def_sub, def_io,
+                return '\n'.join([def_macros, def_sub, def_io,
                                        op_code,
                                        undef_io, undef_sub, undef_macros])
            else:
@@ -1561,7 +1561,7 @@ class COp(Op):
            def_sub, undef_sub = self.get_sub_macros(sub)
            def_io, undef_io = self.get_io_macros(inputs, outputs)

-            return os.linesep.join([def_macros, def_sub, def_io,
+            return '\n'.join([def_macros, def_sub, def_io,
                                    op_code,
                                    undef_io, undef_sub, undef_macros])
        else: