Made foreach work with nullable iterables
Merge pull request #22 from Hilzu/ForEach

Made foreach work with nullable iterables
fix a bug which is converting from for(;;) to while()
fix formatting
Merge pull request #24 from ikegam/fixForwithNull

fix a bug which is converting from for(;;) to while()
Build fix: "Duplicate method name&signature in class file"
FqName.isValid replaced with QualifiedNamesUtil.isValidJavaFqName