Revert of [debugger] remove debugger statement support from FCG/CS.

src/arm64/macro-assembler-arm64.cc

Index: src/arm64/macro-assembler-arm64.cc
diff --git a/src/arm64/macro-assembler-arm64.cc b/src/arm64/macro-assembler-arm64.cc
index 2011948dbb96279ddf4ab37cfe426390a52e6aec..9ee27cd8f55113c6ffdeaf925f78faa825ab0475 100644
--- a/src/arm64/macro-assembler-arm64.cc
+++ b/src/arm64/macro-assembler-arm64.cc
@@ -2888,6 +2888,15 @@
   }
 }
 
+
+void MacroAssembler::DebugBreak() {
+  Mov(x0, 0);
+  Mov(x1, ExternalReference(Runtime::kHandleDebuggerStatement, isolate()));
+  CEntryStub ces(isolate(), 1);
+  DCHECK(AllowThisStubCall(&ces));
+  Call(ces.GetCode(), RelocInfo::DEBUGGER_STATEMENT);
+}
+
 void MacroAssembler::MaybeDropFrames() {
   // Check whether we need to drop frames to restart a function on the stack.
   ExternalReference restart_fp =