Fixes incorrect indentation of line comments after break and re-alignment.

Summary:
Selectively propagate the information about token kind in
WhitespaceManager::replaceWhitespaceInToken.For correct alignment of new
segments of line comments in order to align them correctly. Don't set
BreakBeforeParameter in breakProtrudingToken for line comments, as it introduces
a break after the _next_ parameter. Added tests for related functions.

Reviewers: klimek

Reviewed By: klimek

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D980

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184076 91177308-0d34-0410-b5e6-96231b3b80d8