Tab-related column number changes

Add a perf test that shows up the 6.4.1 bug in preInlineUnconditionally

revert rev. 1.2, looks like an accident

Accept changes in columnn numbers, now that tabs count as 1, not 8.
(There are some minor changes in where line breaks occur too,
 for reasons I don't understand.)

Accept output for new test

Another existential escape test

Add new tests

add LANGUAGE pragma tests

define ghc_with_smp

- add SMP way for tests
- add RTS way flags: -N2 for SMP (test multi-processor), and -p for
  profiling (actually test the profiler!)

small fix to this test

tiny fix to simple_run(), adding a space between args and rts_flags.

Fix this test

accept output

test requires -fglasgow-exts now

Update output

add apparently missing file

add expected output

add expected output

Add case-simplification test

add some record-syntax stuff

Add a test for the unifyTyConApp bug

add test for forkm crash

Another kind-error test

add test for bug #1285326

Another test

Add a couple of tests

Two type-formation tests (cf Sourceforge 1276246)

Another type-formation test (cf Sourceforge 1276115)

Two more type-formation tests

Slightly better overlap checking; missed one file

Slightly better overlap checking

Accept (better) output

Accept output

add stdout file

Add missing file

Update output

Update output; add a test

test queryFdOption

turn off orphan instance warnings