pgsql: Rework format of comments in headers for nodes

Rework format of comments in headers for nodes

This is similar to 835d476, except that this one is to add node
attributes related to query jumbling and avoid long lines in the headers
and in the node structures changed by this commit.

Reviewed-by: Peter Eisentraut
Discussion: /messages/by-id/Y5BHOUhX3zTH/ig6@paquier.xyz

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/5d29d525ffe028fdf6b2d3ff7502243e56c6c79a

Modified Files
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src/include/nodes/parsenodes.h | 170 ++++++++++------
src/include/nodes/primnodes.h | 430 +++++++++++++++++++++++++++--------------
2 files changed, 398 insertions(+), 202 deletions(-)