get rid of 'yellow last line' problem by assigning the function exit error...

get rid of 'yellow last line' problem by assigning the function exit error handling and default value return code to the signature line instead of the last code line

Cython/Compiler/Nodes.py

@@ -1749,8 +1749,11 @@ class FuncDefNode(StatNode, BlockNode):
         # -------------------------
         self.generate_function_body(env, code)
 
-        # ----- Default return value
+        code.mark_pos(self.pos)
         code.putln("")
+        code.putln("/* function exit code */")
+
+        # ----- Default return value
         if self.return_type.is_pyobject:
             #if self.return_type.is_extension_type:
             #    lhs = "(PyObject *)%s" % Naming.retval_cname
@@ -2975,6 +2978,10 @@ class DefNodeWrapper(FuncDefNode):
         # ----- Go back and insert temp variable declarations
         tempvardecl_code.put_temp_declarations(code.funcstate)
 
+        code.mark_pos(self.pos)
+        code.putln("")
+        code.putln("/* function exit code */")
+
         # ----- Error cleanup
         if code.error_label in code.labels_used:
             code.put_goto(code.return_label)
@@ -3788,6 +3795,11 @@ class GeneratorBodyDefNode(DefNode):
                 lenv.scope_class.type.declaration_code(Naming.cur_scope_cname),
                 lenv.scope_class.type.cast_code('%s->closure' %
                                                 Naming.generator_cname)))
+
+        code.mark_pos(self.pos)
+        code.putln("")
+        code.putln("/* function exit code */")
+
         # on normal generator termination, we do not take the exception propagation
         # path: no traceback info is required and not creating it is much faster
         code.putln('PyErr_SetNone(PyExc_StopIteration);')