Bug 1479900 - Part 1: Use accessor methods for JSString::flags/length. r=sfink Add accessor methods so that underlying storage strategy can be changed later. This patch should not change current behaviour. MozReview-Commit-ID: IRA53TQShe6

Merge mozilla-central to mozilla inbound. a=merge

Fix up for bug 1481727, because operator priorities are fucked up in C/C++. r=bustage on a CLOSED TREE

Fix up clang-tidy after bug 1480631. r=bustage

Bug 1480631 - Switch Linux builds to clang. r=froydnj This change switches most CI builds to clang, with a few exceptions: - valgrind builds, until bug 1481670 is figured out. - PGO and nightly builds, until that's fully tested. - coverage builds, per bug 1471339 comment 17. - base toolchain builds, to keep some builds on GCC even when we're fully switched to clang. - any build that doesn't use build/unix/mozconfig.linux (e.g. probably all those driven by autospider.py, maybe others).

Bug 1480631 - Copy 32-bits libraries from gcc to clang. r=froydnj We already copy the 64-bits libraries, but don't copy the 32-bits libraries, which prevents building for linux32 by default. Incidentally, this also makes the clang build system build the 32-bits compiler-rt libraries, allowing e.g. 32-bits PGO.

Bug 1481719 - Disable profile-instr-out-of-date warnings explicitly rather than allowing all warnings where they appear. r=dmajor

Bug 1481727 - Fix an elfhack corner case after bug 1423822. r=froydnj Bug 1423822 moved the injected code section before the .text section. When linking with lld, the text section is usually page aligned, and starting a PT_LOAD. We inject code at the beginning of the PT_LOAD, which means the PT_LOAD is going to be extended at least a page downwards. And it means the preceding PT_LOAD can't finish in that same page, so the overhead of the injected code is needs to account for the page alignment.

Bug 1481505 - add aarch64 bits to DEFINES and DSO_LDOPTS; r=dmajor Not having _ARM64_ in DEFINES makes any number of things go wrong.

Bug 1102679 followup. Restore failure annotation that should not have been removed. r=bzbarsky

Backed out changeset f893f5da2e63 (bug 1465491) for failing Devtools on devtools/client/debugger/new/test/mochitest/browser_dbg_rr_breakpoints-01.js

Bug 1478153 - Update OTS to version 7.1.7. r=jfkthame

Backed out 2 changesets (bug 1362034) for failure at browser/tools/mozscreenshots/primaryUI/browser_primaryUI.js on a CLOSED TREE Backed out changeset 1c3329958b8a (bug 1362034) Backed out changeset f68b1b76af36 (bug 1362034)

Backed out changeset 22e7df1eb55c (bug 1481628) failure at browser/base/content/test/static/browser_parsable_script.js on a CLOSE TREE

Backed out changeset 0bcce164a404 (bug 1481700) failure at browser/base/content/test/tabs/browser_multiselect_tabs_using_Shift.js on a CLOSED TREE

Bug 1480913: Convert extra_args field in talos firefox setup from a str to a list; r=rwood

Bug 1478165: Ensure that a talos suite config's talos_options do not override existing options supplied via the command line; r=rwood

Bug 1473029, have nsTreeBodyFrame::GetSelectionRegion use nsIntRegion instead of nsIScriptableRegion, r=mstange

Bug 1473029, convert drag services to internally use CSSIntRegion instead ns nsIScriptableRegion, r=mstange

Bug 1473029, remove the region arguments from InvokeDragSession and InvokeDragSessionWithImage, r=mstange