Reland [heap] Avoid the use of cells to point from code to new-space objects.

src/mips64/assembler-mips64.cc

Index: src/mips64/assembler-mips64.cc
diff --git a/src/mips64/assembler-mips64.cc b/src/mips64/assembler-mips64.cc
index 1dece1c98db32a9def7d96b6772886b873c37a2d..4300eca7d3d196a47fa65acec419f41f9fffb02c 100644
--- a/src/mips64/assembler-mips64.cc
+++ b/src/mips64/assembler-mips64.cc
@@ -204,7 +204,6 @@ Operand::Operand(Handle<Object> handle) {
   // Verify all Objects referred by code are NOT in new space.
   Object* obj = *handle;
   if (obj->IsHeapObject()) {
-    DCHECK(!HeapObject::cast(obj)->GetHeap()->InNewSpace(obj));
     imm64_ = reinterpret_cast<intptr_t>(handle.location());
     rmode_ = RelocInfo::EMBEDDED_OBJECT;
   } else {