VM: More abstract interface for generating stub calls.

runtime/vm/assembler_arm64.cc

Index: runtime/vm/assembler_arm64.cc
diff --git a/runtime/vm/assembler_arm64.cc b/runtime/vm/assembler_arm64.cc
index 68184bc74b825bbd6d26373eda08559d0de881c9..11fbdb251e263751ef9bd6cb8354b5f4978b7df2 100644
--- a/runtime/vm/assembler_arm64.cc
+++ b/runtime/vm/assembler_arm64.cc
@@ -584,6 +584,30 @@ void Assembler::LoadDImmediate(VRegister vd, double immd) {
 }
 
 
+void Assembler::Branch(const StubEntry& stub_entry) {
+  const ExternalLabel label(stub_entry.EntryPoint());
+  Branch(&label);
+}
+
+
+void Assembler::BranchPatchable(const StubEntry& stub_entry) {
+  const ExternalLabel label(stub_entry.EntryPoint());
+  BranchPatchable(&label);
+}
+
+
+void Assembler::BranchLink(const StubEntry& stub_entry) {
+  const ExternalLabel label(stub_entry.EntryPoint());
+  BranchLink(&label);
+}
+
+
+void Assembler::BranchLinkPatchable(const StubEntry& stub_entry) {
+  const ExternalLabel label(stub_entry.EntryPoint());
+  BranchLinkPatchable(&label);
+}
+
+
 void Assembler::AddImmediate(Register dest, Register rn, int64_t imm) {
   Operand op;
   if (imm == 0) {