Reland "Add out-of-line constant pool support to Arm."

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 5cc365aad56391a4bf0971e1548224003370d02d..85087270bef2f112a5561422b09fbf5df1f18a2c 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -1326,6 +1326,8 @@ class MaybeObject BASE_EMBEDDED {
   V(kTheInstructionShouldBeAnOri, "The instruction should be an ori")         \
   V(kTheInstructionToPatchShouldBeALoadFromPc,                                \
     "The instruction to patch should be a load from pc")                      \
+  V(kTheInstructionToPatchShouldBeALoadFromPp,                                \
+    "The instruction to patch should be a load from pp")                      \
   V(kTheInstructionToPatchShouldBeAnLdrLiteral,                               \
     "The instruction to patch should be a ldr literal")                       \
   V(kTheInstructionToPatchShouldBeALui,                                       \