#778 @UndefinedVariable fails on splitted line

[Steffen Siebert]

In the following code the @UndefinedVariable comment doesn't suppress the code analysis error:

a = 10
c = b \ + a #@UndefinedVariable

If I switch a and b, it works as expected:

a = 10
c = a \ + b #@UndefinedVariable

Obviously @UndefinedVariable only works for the current line, but not for the whole multi-line python statement.