Add deSugar tests.

Further improvements to printing of diagnostic information.

Add simplifier tests.

normalise_errmsg()s in a few more places.

Add stranal tests.

Assimilate renamer tests.

Print the outcome for each test as soon as it is known.  Makes
debugging the testsuite a lot easier.

Updated expected output for typechecker failure tests.

Further adventures to do with approximate matching of compiler error
messages.  Use the new pipe facility in the test driver to normalise
error messages before comparison, by piping them through new program
normalise_errmsg.  This avoids various kinds of tiresome comparison
failures to do with capitalisation, whitespace changes, and path
names.

Add support for piping arbitrary strings through arbitrary programs.

Add typechecker should_fail tests.

Document current limitations of ghc-regress tests.

Quite a significant number of your typechecker tests are belong to
fptools/testsuite.

Hey!  This game is easy.

Complete the codeGen tests.

Add support for compile-only (should_run) style tests.

Various misc hackery which didn't seem to have made it through since the
last commit.

All your codeGen tests are belong to me.  Well, the should_run ones,
at least.

Command-line enhancements:
* Restrict the run to specific test(s).
* Allow variables to be set at the command line.

Track recent hackery.

More minor tweaks.

Move to new framework.

Many improvements and debuggings.  The test driver now works as
desired, with multiple tests described in each .T file, and with the
test driver having a minimum of hardwired logic.

Onwards and upwards (allegedly).

Yet another major rewrite of the test driver.

Save today's work in a safe of placety, in view of the catastrophically
bad current state of our main NFS server.

Commit hackery so far.

Beginnings of documentation for the driver language syntax/semantics.

Changes to support running "vanilla" tests -- those with a single source
file, reference .stdin, .stdout and maybe .stderr files.  These constitute
the vast majority of GHC tests.

Make another sad directory happy.

You can now cd to fptools/testsuite and do 'make all'.  This will
build the test driver and then run ghc/compiler/ghc-inplace over
the as-yet small collection of tests herein.

It is a sad directory that does not contain a Makefile.

Typo in test config file:  expect -> expected

More stuff that has moved up a directory.

These have moved up a directory.

Add expected output.

Typo: chr1.run.stderr should be chr1.run.stdout.

Add config clause for nhc98.

Add a config clause for nhc98.

Example infix/fndecl should now compile and run with ghc.  It wasn't
intended to test for ambiguous type variables - just for the
    (a1 `op` a2) a3 = ...
definition style, which nhc98 still fails to parse.

Add config clause for nhc98.