Translates quoted terms and types to
unpickle method calls.
Checks that the phase consistency principle (PCP) holds.
The main transformer class
tree has holes, convert it to a function taking a
Seq of elements as arguments
where each hole is replaced by the corresponding sequence element.
A name given to the
Phase that can be used to debug the compiler. For
instance, it is possible to print trees after a given phase using:
$ ./bin/dotc -Xprint:<phaseNameHere> sourceFile.scala
paramRefs consists of a single reference
seq to a Seq[Any],
a tree map that replaces each hole with index
to any arguments in the hole.