It's not really necessary if the information about if the lambda was a
trailing lambda can be directly saved in FirAnonymousFunctionExpression.
Removing the FIR node uncovered a couple of bugs
(UNINITIALIZED_ENUM_ENTRY, ERROR_IN_CONTRACT_DESCRIPTION) that were
caused by assuming that a lambda is always a trailing lambda.
#KT-66124
This is required to have stable resolution order to avoid concurrent
modifications and correct resolution context.
This also fixes KT-63700 as a super call expands only during body
resolution in the case of secondary constructor
^KT-63042
^KT-63700 Fixed