3 files changed, 1 insertions, 9 deletions
diff --git a/js/src/jit/BaselineIC.cpp b/js/src/jit/BaselineIC.cpp
index d95d08edc..2f20ffa4f 100644
--- a/js/src/jit/BaselineIC.cpp
+++ b/js/src/jit/BaselineIC.cpp
@@ -289,7 +289,7 @@ DoTypeUpdateFallback(JSContext* cx, BaselineFrame* frame, ICUpdatedStub* stub, H
       case ICStub::SetProp_Native:
       case ICStub::SetProp_NativeAdd:
       case ICStub::SetProp_Unboxed: {
-        MOZ_ASSERT(obj->isNative() || obj->is<UnboxedPlainObject>());
+        MOZ_ASSERT(obj->isNative());
         jsbytecode* pc = stub->getChainFallback()->icEntry()->pc(script);
         if (*pc == JSOP_SETALIASEDVAR || *pc == JSOP_INITALIASEDLEXICAL)
             id = NameToId(EnvironmentCoordinateName(cx->caches.envCoordinateNameCache, script, pc));
diff --git a/js/src/jit/MIR.h b/js/src/jit/MIR.h
index 0992768bf..9076339f1 100644
--- a/js/src/jit/MIR.h
+++ b/js/src/jit/MIR.h
@@ -3785,7 +3785,6 @@ class MObjectState
     MOZ_MUST_USE bool initFromTemplateObject(TempAllocator& alloc, MDefinition* undefinedVal);
 
     size_t numFixedSlots() const {
-        MOZ_ASSERT(!isUnboxed());
         return numFixedSlots_;
     }
     size_t numSlots() const {
diff --git a/js/src/jscompartment.cpp b/js/src/jscompartment.cpp
index a48bb0ffe..6024a1768 100644
--- a/js/src/jscompartment.cpp
+++ b/js/src/jscompartment.cpp
@@ -112,13 +112,6 @@ JSCompartment::~JSCompartment()
     js_delete(nonSyntacticLexicalEnvironments_),
     js_free(enumerators);
 
-#ifdef DEBUG
-    // Avoid assertion destroying the unboxed layouts list if the embedding
-    // leaked GC things.
-    if (!rt->gc.shutdownCollectedEverything())
-        unboxedLayouts.clear();
-#endif
-
     runtime_->numCompartments--;
 }