These properties have a very specific detail in their behavior, in that
the constructor's name is set to be "<init>". While this is OK for the
IR serialization, this may not always be expected in other cases, and
their rather common names (`name`, `fqNameSafe`) suggested that these
properties could be used in generic contexts.
Change all usages outside IR serialization to use
`IrDeclarationWithName.name` and nullable
`IrDeclarationWithName.fqNameWhenAvailable` instead
Alexander Udalov
8dc34ae7b9