[compiler] Delay allocation of code-embedded heap numbers.

src/arm64/macro-assembler-arm64-inl.h

Index: src/arm64/macro-assembler-arm64-inl.h
diff --git a/src/arm64/macro-assembler-arm64-inl.h b/src/arm64/macro-assembler-arm64-inl.h
index e2fbc8f4af9bcf1b1d1879c3054a32bef5c9d8ca..d4cb3b7cd87e239c93606c569561688b5151528f 100644
--- a/src/arm64/macro-assembler-arm64-inl.h
+++ b/src/arm64/macro-assembler-arm64-inl.h
@@ -877,10 +877,9 @@ void MacroAssembler::Isb() {
   isb();
 }
 
-
-void MacroAssembler::Ldr(const CPURegister& rt, const Immediate& imm) {
+void MacroAssembler::Ldr(const CPURegister& rt, const Operand& operand) {
   DCHECK(allow_macro_instructions_);
-  ldr(rt, imm);
+  ldr(rt, operand);
 }