#412 Inline code analysis for string conversion

[klaus]

Currently pydev does not recognize the error: aString = "test" % anotherString, which actually should be aString = "test_%s" % anotherString. Would be nice to see that not all strings could be converted.

[Fabio Zadrozny]

Nice idea, I think that this specific case can be covered (the case it cannot really know what should be there is when there is only one element in the right side of the expression, as it can't always determine if that's some tuple or not, but aside from that case, it should be able to check that).