Change ("a" . "b") . "c" into "a" . "b" . "c" using the lex-pass tool.

Change-Id: I818d55a2f00b549fef8377f1c6766c293edd021c
Resolves: #40880
Related: #40095
Releases: 6.0
Reviewed-on: http://review.typo3.org/14565
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-by: Mattias Nilsson
Tested-by: Mattias Nilsson
Reviewed-by: Helmut Hummel
Tested-by: Helmut Hummel