add stack info member in GError
Submitted by david Han
Link to original bug (#633228)
Description
Now in GError struct ,there no call stack info member, so, we cannot show the stack info in the caller functions. add a stackinfo list member in the GError to recording the callstack info. add a g_error_append_callinfo(...) function to append the callstack info when we after called g_error_new or g_propagate_error and other g_error functions.