[PATCH] Convert other drivers to use WrapperNode.

[kledzik at apple.com]

This seems to have lost the parallel reading/parsing of input files.  It looks like parseFile() called by the driver is triggering the actual parsing and parse() called by the Driver in parallel just returns the error code from the parse.


REPOSITORY
  rL LLVM

http://reviews.llvm.org/D6874

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