* Fix and tests, unbuilt and untested

* Correct one of the tests

Got the order wrong for the output of `countBy`.

* Repair the groupBy test

groupBy test was bad: it assumed (ridiculously) that groupBy wouldn't iterate the original sequence even though it somehow knew the groups in the sequence.

* remove massive string allocations

* change NormalizedSource Source and Seq to Array computation expression

* fix line end according to the source positions

* remove pos use i

* fix some tests

* CP: Use Framework valuetuple rather than netstandard1.0 one (#5872)

* Use Framework valuetuple rather than netstandard1.0 one (#5867)

* remove references from template

* update templates

Merge dev15.9 to master

Merge dev15.8 to master

* Add VS 15.9 release notes

* add milestone

* Add jason attribution

* Initial FS-1065 implementation

* Undo removal of compilationrepresentation suffix and update surface area

* Whoopise, add the suffix to the impl file

* Update coreclr surface area

* Revert the FSComp changes that somehow got picked up

* newline

* Consume internal VOption module functions

* More internal voption module functions

* Remove dependence on runfsc.cmd and runfsc.sh

* White space

* Optimize String.Concat calls

* Small refactor

* Added test

* Another test

* Fixing tests

* using /noca

* Fixing test

* Fixing tests again

* Minor adjustments from feedback

* Quick fix

* More tests

* Updated baselines + more tests

* Added better way to test IL directly in unit tests

* Moved StringConcat.fs tests

* Removed bad file

* Using FSharpChecker directly

* Added more tests

* Comparing lines for tests

* Better IL check output

* Small cleanup

* Fixed test

[FS-1030] - Anonymous records

Khoiph1 loc

* Starting refactoring of ConstraintSolver.fs
Signed-off-by: Nrealvictorprm <mueller.vpr@gmail.com>

* more refactoring of ++ operator
Signed-off-by: Nrealvictorprm <mueller.vpr@gmail.com>

* Trying to apply correct style.
Signed-off-by: Nrealvictorprm <mueller.vpr@gmail.com>

* replaced most usage of IterateD + styling
Signed-off-by: Nrealvictorprm <mueller.vpr@gmail.com>

* More style cleanup to reduce diff.
Signed-off-by: Nrealvictorprm <mueller.vpr@gmail.com>

* big restore of original spacing
Signed-off-by: Nrealvictorprm <mueller.vpr@gmail.com>

* Applying review.
Signed-off-by: Nrealvictorprm <mueller.vpr@gmail.com>

* whitespace fix

* update FSComp.fs

Loc Checkin

* Add tests

* Add detection of generic types in rec modules

* Fix large ranges

* update FCS

* I can't add up

* fix build

* test fix

* fix tests

* fix tests

* fix tests

* Fixed referencing cross projects (#5698)

* Fixed referencing cross projects

* Fixed legacy project referencing CPS style project

* Fixed tooling issues when changing solutions (#5721)