Update AlignParameters for multi-line method calls

When using fixed indentation, multi-line parameters should be indented
relative to the method call they're a part of, taking into account the
fact that if their method call is part of a multi-line method chain, it
will be indented further than the beginning of their node.
Merge pull request #1073 from molawson/multiline-param-alignment

Fix AlignParameters for multi-line method calls