Since KotlinTypeMapper is no longer used in the JVM IR backend, we need
not run CodegenBinding.initTrace and check that names of local entities
are exactly equal to local names computed by that algorithm.
However, it's still useful as an opt-in flag, to discover issues where
unwanted elements take part in the naming (such as temporary IR
variables, see for example cb2e68fece). So we introduce a new command
line argument -Xir-check-local-names which, when the IR backend is used
(via -Xuse-ir), launches the name computation algorithm from the old
backend and then compares that the names are exactly equal to the names
computed by the IR backend in InventNamesForLocalClasses.
Alexander Udalov
6ef434a711