* fix multi case struct unions

* fix serialization of struct unions

* fix serialization of struct unions (2)

* Spelling typos (of Comments in src/*.fs{i} files)

* Typo (illib.fs)

The compiler has some logic to search for known types amongst available DLLs.

With this PR we get to enable several tests that uses F# Interactive on .NET Core and more tests for the F# compiler on .NET Core

Some of the known-type-search logic is OK, but swathes of it are not so good, e.g. this stuff

This improves the search by

just having one function to do the search

moving many "known types" out of Abstract IL (ILGlobals) and into the F# Compiler TcGlobals. THe advantages of this is that getting started with ILGlobals is much simpler if the set of referenced types is simpler - in particular if the small set of types known to Abstract IL are all always in the primary assembly (Int32, String, Array etc.).

This is particularly important for .NET Core. I don't trust the current code to correctly find some of the more obscure types for .NET Core, since the searching was based around various assumptions for Profile 7, 78, 259.

Overall this removes a fair chunk of fragile code from the compiler.

Separately this refactors TcGlobals to be a class instead of a record (which requires fewer lines of code)

seekReadMethodDefAsMethodDataUncached didn't honour the total parameter
count of both the type object and the method object. If there was only
one, then the correct result would have been achieved, but when both
were specific it caused corruption of the resultant MethodData
structure.

* Improve scope arrangement for portable pdbs

* Git:
1)  Enable implicit sequence points for portable pdbs
2) Minor rename and cleanup for portable pdb generation

* Saved

* Fix manifest --- it was inadvertently updated with debuggableattribute flags.

* reset debug build to full pdpbs

* Bye bye FlatList

* Bye bye ILList

* Remove Flatlist from proto

* Remove more tautological calls

Updated formatted comments with code review comments.

This reverts commit 0214e3b8.

Scope of types for named values in attributes improperly set as assembly where attribute is defined

fixes https://github.com/Microsoft/visualfsharp/issues/82
closes https://github.com/Microsoft/visualfsharp/pull/568

commit a7e74c8cba301d39bb5b1d07f448dc4bcef88967
Author: latkin <latkin@microsoft.com>
Date:   Thu Aug 13 16:55:32 2015 -0700

    Add tests

commit 6c6cb0e0ebae07c1e55847e2ddbab72bdcffef54
Merge: d2a25c8 01dc5083
Author: Don Syme <donsyme@fastmail.fm>
Date:   Tue Aug 4 20:05:22 2015 +0100

    update

commit d2a25c8db9c55d1ee0bd78c140355ccaa9130fee
Author: Don Syme <donsyme@fastmail.fm>
Date:   Mon May 11 12:44:15 2015 +0100

    updates to fix (3)

commit 1097c068a457585c1e303e788d6bbb792a71e32d
Author: Don Syme <donsyme@fastmail.fm>
Date:   Mon May 11 12:42:43 2015 +0100

    updates to fix (2)

commit 27c926891d1671edc6c174ee676eece370cbdc78
Author: Don Syme <donsyme@fastmail.fm>
Date:   Mon May 11 12:40:47 2015 +0100

    updates to fix

commit fb3a470b9ec90bc81f4c2289d0c0c7a6c7e3cebe
Author: Don Syme <donsyme@fastmail.fm>
Date:   Mon May 11 12:36:13 2015 +0100

    fix for 82

See spec at https://gist.github.com/latkin/cba4187a99db9747d0bf
closes #225

commit b8ea6f617f32e44f29a22afd7aa4f2d09bb1a091
Author: latkin <latkin@microsoft.com>
Date:   Tue Feb 24 17:12:04 2015 -0800

    Touch-ups after rebase

commit 26ff24562bfb49de79c44342105f2946898c2f1e
Author: latkin <latkin@microsoft.com>
Date:   Wed Feb 18 12:54:36 2015 -0800

    Add capability to auto-break on first executable line

commit 675a27298d687cb8c3240af64069cc22accefe02
Author: latkin <latkin@microsoft.com>
Date:   Wed Feb 18 12:53:27 2015 -0800

    Change menu text, use more sensible hotkeys

commit ab73f78ca8bfc4b433152aa3e173fc22b74786a0
Author: latkin <latkin@microsoft.com>
Date:   Wed Feb 18 12:52:39 2015 -0800

    Small whitespace alignment

commit f551344b09fdfb94bfd813100d6065032bd92520
Author: latkin <latkin@microsoft.com>
Date:   Thu Feb 12 19:29:16 2015 -0800

    Output symbol info for locals

commit d6a0faac99bd33fec0c4be24d13009127b8ff420
Author: latkin <latkin@microsoft.com>
Date:   Thu Feb 12 18:00:14 2015 -0800

    Use same whitespace style as existing code

commit a4003c17a006d7eeda1c3920ad05aef788db846e
Author: latkin <latkin@microsoft.com>
Date:   Wed Feb 11 11:06:22 2015 -0800

    Add 'detach' item for tool window, and give 'attach'/'detach' smart visibility

commit c5a64605aca53cdfd742975225c8fa4e665b9f84
Author: latkin <latkin@microsoft.com>
Date:   Wed Feb 11 07:39:34 2015 -0800

    Enable basic script debugging

commit 8f1dcd1c760ce7ab2ae9de706bf12763038f2257
Author: latkin <latkin@microsoft.com>
Date:   Thu Oct 23 14:43:21 2014 -0700

    Updating tests to use proper env variables, adding .gitignore, renaming .cmd to .bat

commit 6097fc2b506c7b61130cf87643ba09f3740e05d5
Merge: 94c895db 0fc7b47
Author: latkin <latkin@microsoft.com>
Date:   Thu Oct 23 14:09:37 2014 -0700

    Merge branch 'pcl_inlining' of https://git01.codeplex.com/forks/vladima/primary into crossmodule

commit 0fc7b4707146d0cf198af1863dcc307d017ede45
Author: desco <desco.by@gmail.com>
Date:   Wed Oct 8 10:30:58 2014 -0700

    remove PrimaryAssembly.NamedMscorlib

commit b84ff88dce143bfd746e214acd806a839aa2903a
Author: desco <desco.by@gmail.com>
Date:   Sat Oct 4 14:13:44 2014 -0700

    added test to list

commit ee32d77d825cf57202135eb40eff9269aaa20c31
Author: desco <desco.by@gmail.com>
Date:   Fri Oct 3 23:24:30 2014 -0700

    Added tests

commit 7f0a59be92f544e4d04c5e41db1679490c419b3a
Author: desco <desco.by@gmail.com>
Date:   Fri Oct 3 16:27:13 2014 -0700

    consider both mscorlib and System.Runtime as candidate names of primary assembly

as requested in #27