handle 0x2028 line separator
FLEX-34020 In TLF truncation, these static variables got re-used by the various attempts at composing different lengths of text to see what would fit.  Changed to instance vars and all tests still passed.
FLEX-33985 In RTL text, computing the next/previous atom is much more tricky
No need forthis file as we're now a top level project
No need for this file
comment out trace statements
FLEX-34098 and FLEX-33985:  Fix more cases in the discretionary hyphens workaround