Intrinsify UserTag operations on all architectures

runtime/vm/intrinsifier_arm64.cc

Index: runtime/vm/intrinsifier_arm64.cc
diff --git a/runtime/vm/intrinsifier_arm64.cc b/runtime/vm/intrinsifier_arm64.cc
index 63690484f6f3be97fd5a59382e36a6704a8b4ae0..3312c6bd96f2decd07af1bb77ea5dfeb0301525f 100644
--- a/runtime/vm/intrinsifier_arm64.cc
+++ b/runtime/vm/intrinsifier_arm64.cc
@@ -403,6 +403,20 @@ void Intrinsifier::TwoByteString_equality(Assembler* assembler) {
 }
 
 
+void Intrinsifier::UserTag_makeCurrent(Assembler* assembler) {
+  UNIMPLEMENTED();
+}
+
+
+void Intrinsifier::Profiler_getCurrentTag(Assembler* assembler) {
+  UNIMPLEMENTED();
+}
+
+
+void Intrinsifier::Profiler_clearCurrentTag(Assembler* assembler) {
+  UNIMPLEMENTED();
+}
+
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64