Adding cython v0.20.2 in third-party.

third_party/cython/src/Cython/Compiler/Code.pxd

Index: third_party/cython/src/Cython/Compiler/Code.pxd
diff --git a/third_party/cython/src/Cython/Compiler/Code.pxd b/third_party/cython/src/Cython/Compiler/Code.pxd
new file mode 100644
index 0000000000000000000000000000000000000000..5ec9a977431159fa814eb7a9e5ae6a57e429f719
--- /dev/null
+++ b/third_party/cython/src/Cython/Compiler/Code.pxd
@@ -0,0 +1,91 @@
+
+cimport cython
+
+#cdef class UtilityCodeBase(object):
+#    cdef public object name
+#    cdef public object proto
+#    cdef public object impl
+#    cdef public object init
+#    cdef public object cleanup
+#    cdef public object requires
+#    cdef public dict _cache
+#    cdef public list specialize_list
+#    cdef public object proto_block
+#    cdef public object file
+#
+#    cpdef format_code(self, code_string, replace_empty_lines=*)
+
+cdef class FunctionState:
+    cdef public set names_taken
+    cdef public object owner
+
+    cdef public object error_label
+    cdef public size_t label_counter
+    cdef public set labels_used
+    cdef public object return_label
+    cdef public object continue_label
+    cdef public object break_label
+    cdef public list yield_labels
+
+    cdef public object return_from_error_cleanup_label # not used in __init__ ?
+
+    cdef public bint in_try_finally
+    cdef public object exc_vars
+    cdef public bint can_trace
+
+    cdef public list temps_allocated
+    cdef public dict temps_free
+    cdef public dict temps_used_type
+    cdef public size_t temp_counter
+    cdef public list collect_temps_stack
+
+    cdef public object closure_temps
+    cdef public bint should_declare_error_indicator
+    cdef public bint uses_error_indicator
+
+    @cython.locals(n=size_t)
+    cpdef new_label(self, name=*)
+    cpdef tuple get_loop_labels(self)
+    cpdef set_loop_labels(self, labels)
+    cpdef tuple get_all_labels(self)
+    cpdef set_all_labels(self, labels)
+    cpdef start_collecting_temps(self)
+    cpdef stop_collecting_temps(self)
+
+    cpdef list temps_in_use(self)
+
+cdef class IntConst:
+    cdef public object cname
+    cdef public object value
+    cdef public bint is_long
+
+cdef class PyObjectConst:
+    cdef public object cname
+    cdef public object type
+
+cdef class StringConst:
+    cdef public object cname
+    cdef public object text
+    cdef public object escaped_value
+    cdef public dict py_strings
+    cdef public list py_versions
+
+    @cython.locals(intern=bint, is_str=bint, is_unicode=bint)
+    cpdef get_py_string_const(self, encoding, identifier=*, is_str=*, py3str_cstring=*)
+
+## cdef class PyStringConst:
+##     cdef public object cname
+##     cdef public object encoding
+##     cdef public bint is_str
+##     cdef public bint is_unicode
+##     cdef public bint intern
+
+#class GlobalState(object):
+
+#def funccontext_property(name):
+
+#class CCodeWriter(object):
+
+cdef class PyrexCodeWriter:
+    cdef public object f
+    cdef public Py_ssize_t level