We have code to test whether particular flags are supported for the
compiler we're using.  Unfortunately, that code is tied up with checking
for warning flags.  We're about to add a separate facility for generic
compilation flags, and we'd like to avoid cutting and pasting code if
possible.  Let's split the core code out into a separate, reusable function.

This probably doesn't make a huge difference, as we're not generating
any code here, but better safe than sorry.

We're going to compile with C++14 and we don't plan to go back.

MozReview-Commit-ID: 3TsM8tbzPMV

Backed out 3 changesets (bug 1398229) for failing own browser-chrome browser/components/contextualidentity/test/browser/browser_saveLink.js. r=backout on a CLOSED TREE

Backed out changeset 5b3b0a38b2d1 (bug 1398229)
Backed out changeset a726fc7506ca (bug 1398229)
Backed out changeset 53dae7764e58 (bug 1398229)

Bug 1417436 - Add Windows code coverage build and test definitions: Add linebreak in long comment to fix flake8 error. r=linting-fix

MozReview-Commit-ID: IZaX1tdDM2W

--HG--
extra : rebase_source : 1f6d9d29e3562e7fab44eb8dd9978a3f360b5d59
extra : source : fbb14e4523d13bd065521479fabfe320f8a7ba5f

MozReview-Commit-ID: 1mzNDOFUNep

--HG--
extra : rebase_source : 0d8f5fa959aaae39c1fdcc0c025905a7a7bbb931

MozReview-Commit-ID: KDllmZzdn6m

--HG--
extra : rebase_source : 374baf211a289c36d2b42d009dd325432cfafb61

MozReview-Commit-ID: AZMWwKFnvG9

--HG--
extra : rebase_source : 6d4cc4f5af7e244c54972aa1afeeb81f98b0c5cb

Bug 1416384 - Part 6: Eliminate calls to Assert{Inner,Outer} and As{Inner,Outer} in nsGlobalWindow, r=smaug

MozReview-Commit-ID: GIiSlDzjgWb

--HG--
extra : rebase_source : e21578e4056b1f3000ef320d2c380fd9889ca9eb

MozReview-Commit-ID: FzaGKmdDtmy

--HG--
extra : rebase_source : 14613fff864493523fd546b75991a63b92fa169a

MozReview-Commit-ID: CV6rrA0M2ZV

--HG--
extra : rebase_source : 2dbd420d97c99715324633f98345eb13d12e0114

This was needed before as the base to nsGlobalWindow, but now that
nsGlobalWindow doesn't exist, and we only have specific versions, we no longer
need this type.

MozReview-Commit-ID: 6IJmJtnSkMr

--HG--
extra : rebase_source : d21068aa7da89a6d49ead2477b91577809f5856a

There are many helper methods and structs in nsGlobalWindow.cpp. Many of these
are used by only the inner or only the outer window, while some are used by
both. In the case of the items used by both, I extracted them into
nsGlobalWindow.cpp, which includes nsGlobalWindowInner.cpp and
nsGlobalWindowOuter.cpp as the compilation unit entry point.

In the case of items used by just one or the other, I removed them from the
other file, and deleted the bodies of functions which used them, replacing them,
with a MOZ_CRASH.

This gets gecko building again, so that we can make further incremental
improvements.

MozReview-Commit-ID: 8QnJ1PX6TAO

--HG--
extra : rebase_source : 0eac00ad757f825a22a1af95d0a01d6fa92d824d

MozReview-Commit-ID: 4Yz8hRMZEJC

--HG--
extra : rebase_source : 9edb91316b60db44034e0a24a14c60877e08a064

MozReview-Commit-ID: CmKx5jtvtrT

--HG--
extra : rebase_source : b1c5fe7c140a743d55c462b6d2bcbf8a97950d9c

MozReview-Commit-ID: JRvPtQTJqSX

--HG--
extra : rebase_source : d80d2cd93c0ad629b92b7b67af664a2ccbbc3658

--HG--
extra : rebase_source : 00e4286187c8c32de094ce10c9ec709f6e5c56a8

--HG--
rename : dom/base/nsGlobalWindow.cpp => dom/base/nsGlobalWindowInner.cpp
rename : dom/base/nsGlobalWindow.h => dom/base/nsGlobalWindowInner.h
rename : dom/base/nsGlobalWindow.cpp => dom/base/nsGlobalWindowOuter.cpp
rename : dom/base/nsGlobalWindow.h => dom/base/nsGlobalWindowOuter.h
extra : rebase_source : e29e0abbbc4898b9d50c05c68ada2f1561678cd1

Bug 1415741.  Switch to a different env var, not MOZ_DEBUG, for disabling mouse event taps on Mac.  r=mstange

MozReview-Commit-ID: BgFpmE2Juom

MozReview-Commit-ID: FQ3LzP7rW6e

Bug 1398229 - Save-link-as feature should use the loading principal - part 3 - implementation of nsIContentPolicy.TYPE_SAVE_AS_DOWNLOAD, r=ckerschb

Bug 1398229 - Save-link-as feature should use the loading principal - part 2 - context menu using nsIContentPolicy.TYPE_SAVE_AS_DOWNLOAD, r=ckerschb

MozReview-Commit-ID: DvMH4cVw5NK

MozReview-Commit-ID: ANdBkuhZ2xx

Bug 1415645 - Part 3: Don't cast to nsGlobalWindow when working with the inner window linked list, r=smaug

After the window split is complete, the inner window linked list won't be
homogenously typed anymore, as there will be an nsGlobalWindowOuter member in
addition to the nsGlobalWindowInner members. This patch changes the code to
perform PRCList* pointer comparisons before casting to nsGlobalWindowInner to
avoid this issue.

MozReview-Commit-ID: 56q5XodtGe7

This will make the split easier, as this method is used by both
nsGlobalWindowInner and nsGlobalWindowOuter.

MozReview-Commit-ID: FsjK4y6x7NE

Bug 1415645 - Part 1: Make nsGlobalWindow.cpp use the specific {Inner,Outer} variants in more places internally, r=smaug

MozReview-Commit-ID: LsgjJTbuH3L

MozReview-Commit-ID: L8qoButUhT9

--HG--
extra : rebase_source : 206e8350fdb78b15124c2fb481364752a12ba1d0

MozReview-Commit-ID: JnonYprELMt

--HG--
extra : rebase_source : 03fa2e05e2e3789fa1ac3a5f218ed9111bbd1c53

MozReview-Commit-ID: I72lkHYq1TF

--HG--
extra : rebase_source : 8b6c8baa58b7265bef781679a2cdb00bb0a6fd9c

MozReview-Commit-ID: 1CB9zUkTIyk

--HG--
extra : rebase_source : 2b00b600b4607fff066ef2d1e8dae6f523a410fb

MozReview-Commit-ID: HhTUMk21hvM

--HG--
extra : rebase_source : 923c9e18c55b93ec8dd528ab7f68df51208360b1

Bug 1416766: Int64 wasm globals should cause a link failure at instanciation time, not compile time; r=luke

MozReview-Commit-ID: 5Ryl47naf9R

--HG--
extra : rebase_source : 742df9347c1a3492f638592436e113922ce46784

--HG--
extra : rebase_source : 3db136b2cccd0a12d6332827748c8a5b9ecefaf8