Set log file in TR_Debug at client

[cjjdespres]

When a client recompiles a method locally following a remote compilation (enabled with the enableJITServerFollowRemoteCompileWithLocalCompile option) it must set up a local log file for compilation traces if necessary. Previously, it would only set this log file explicitly in the TR::Compilation object itself; the _file in the TR_Debug object for the compilation would not be set. Since the TR_Debug would have been created already during the prior remote compilation with a NULL _file, this had the effect of suppressing the compilation traces coming from systems that used that _file for output and not the _logFile in the TR::Compilation itself.

The file in the TR_Debug object for the compilation is now set explicitly.