Table of file names with absolute paths.

The table of file names written to the c or cpp file contains absolute
file paths.  This affects, in particular, profiling.  The c method
__pyx_TraceCall takes as one of its arguments a file name, which will be
read from the table of file names.

Cython/Compiler/ModuleNode.py

@@ -687,7 +687,7 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
         code.putln("static const char *%s[] = {" % Naming.filetable_cname)
         if code.globalstate.filename_list:
             for source_desc in code.globalstate.filename_list:
-                filename = os.path.basename(source_desc.get_filenametable_entry())
+                filename = os.path.abspath(source_desc.get_filenametable_entry())
                 escaped_filename = filename.replace("\\", "\\\\").replace('"', r'\"')
                 code.putln('"%s",' % escaped_filename)
         else: