import changes from `dev' branch of rmottola/Arctic-Fox:

- Bug 1212298 - Use inner script instead of outer script in CodeGenerator::visitCallDirectEval. r=shu (cee3f366a6)
- Bug 1233331 - CodeGenerator: Properly indent IonScript::New. r=jandem (6d110c45a3)
- Bug 1233331 - CodeGenerator: Prepare the invalidation of the recompileInfo as soon as the contraints are recorded. r=jandem (679d22dd8e)
- Bug 1238417 - Part 1: Fix wrong rebase for _SetCanonicalName call on RegExpToString. r=till (31ee926189)
- Bug 1238417 - Part 2: Fix argument count of RegExpMatcher and RegExpTester. r=till (9dc5dcadd5)
- Bug 1238417 - Part 4: Enable recover instruction for RegExpMatcher and RegExpTester. r=h4writer (5479b238ac)
- Bug 1238417 - Part 5: Add RegExpMatcher to MustCloneRegExp optimization. r=h4writer (554905fa3a)
- Bug 1238417 - Part 6: Make RegExpMatcher and RegExpTester movable. r=h4writer (72091090ee)
- Bug 1238417 - Part 7: Add comment for OutOfLineRegExpMatcher and OutOfLineRegExpTester. r=nbp (f5e4519728)
- Bug 1238630 - Fix unicode surrogate pair handling in RegExp. r=h4writer (d4c1e1d49d)
- Bug 1236600 - Properly pre-barrier sets to inline TypedObject Any-type Elements. (r=jandem) (1f23bb6d61)
- Bug 1149245 - Make DeserializedEdgeRange re-use its referents edge vector; r=vporof (ea861bfd43)
- Bug 1235631 - Odin: remove change-heap support (r=bbouvier) (940a0d58bc)
- Bug 1231224 part 11 - Add missing OOM checks in Module::setProfilingEnabled. r=luke (0d264fa46b)
- Bug 1234402 - Crash on OOM in AlternativeGenerationList constructor. r=bbouvier (baa7b3da17)
- Bug 1231224 part 12 - Use InfallibleVector in irregexp code to avoid MOZ_WARN_UNUSED_RESULT warnings. r=luke (72ac897dab)
- Bug 1231224 part 13 - Add OOM checks to Statistics::initialize. r=jonco (5033150018)
- Bug 1237508 - Odin: remove function index from Export (r=bbouvier) (d368ef7f85)
- Bug 1236541 - Odin: when enabling profiling, only patch actual callsites (r=bbouvie) (713dbcc45c)
- Bug 1235046 - Optimize JIT-code poisoning to be fast with W^X. r=bhackett (25972b36a9)
- Bug 1215479 - Turn on W^X JIT code by default. r=luke (82c4b94315)
- Bug 1235868 - Change nonWritableJITCode to ifdefs. r=jandem (4dee262ff4)
- Bug 1237508 - Add missing #include to fix non-unified builds (r=me) (327242e706)
- Bug 1236530 - Make ExecutableAllocator::reprotectRegion fallible and handle in asm.js (r=jandem) (9444127563)
- Bug 1229399: Make initialization of asm.js local variables closer to wasm; r=luke (732d40b42c)
- Bug 1229399: Store line/column info in the FuncIR rather than the bytecode stream; r=luke (483faefbdd)
- Bug 1235989 - Add a null check for filename in ModuleValidator::finish. r=luke (abc62aa437)
- Bug 1235041 - Cast value to uint64_t in order to prevent int overflow when value is greater than 2^12. r=jonco (ef754091ea)
- Bug 1182369 - Remove js/Class.h include from nsWrapperCache.h. - r=bz (cc7b3c856b)
- Bug 1231964 - Move CC participant code that touches JS out of mozglue. r=smaug (100fceeb2b)
- Bug 1120016 - Allocate short lived JS wrappers in the Nursery, r=mccr8,terrence (2a17a5484d)
- Bug 1235277 - Define MOZ_FALLTHROUGH_ASSERT to workaround -Wunreachable-code warnings about MOZ_FALLTHROUGH in debug builds. r=botond (262589e609)
- Bug 1247679, part 1 - Make ClearJSHolder publicly inherit from TraceCallbacks. r=smaug (1a3543fd31)
- Bug 1235598 - Part 1: Add better SpiderMonkey API support for tracing in C++; r=sfinxk (f23bf81919)
- Bug 1235598 - Part 2: Use TraceEdge exclusively in Gecko; r=smaug (a3ad4d0ef7)

js/ipc/JavaScriptShared.cpp

@@ -35,10 +35,8 @@ IdToObjectMap::init()
 void
 IdToObjectMap::trace(JSTracer* trc)
 {
-    for (Table::Range r(table_.all()); !r.empty(); r.popFront()) {
-        DebugOnly<JSObject*> prior = r.front().value().get();
-        JS_CallObjectTracer(trc, &r.front().value(), "ipc-object");
-    }
+    for (Table::Range r(table_.all()); !r.empty(); r.popFront())
+        JS::TraceEdge(trc, &r.front().value(), "ipc-object");
 }
 
 void