Determining which comments are contiguous is difficult once they have
been parsed into an out-of-band comment list, as any intervening nodes
are in a separate structure. Group the comments into CommentGroups
during the parsing stage instead.
Change-Id: I9444c58e75333b7521b58dbfbd36ff29d139b6e3
Refactor the blueprint parser Value object, which contained a Type enum
and members to hold every possible type, into an interface (now called
Expression). Rename the existing Expression object that represented a binary
operator Operator.
Also adds and fixes some new printer test cases with mulitline expressions.
Change-Id: Icf4a20f92c8c2a27f18df8ca515a9d7f282ff133
Make integrating with go tools easier by putting the blueprint package
files in the top level directory of the git project instead of in a
subdirectory called blueprint.
Change-Id: I35c144c5fe7ddf34e478d0c47c50b2f6c92c2a03
