[runtime] Replace COMPARE/COMPARE_STRONG with proper Object::Compare.

src/runtime/runtime-object.cc

Index: src/runtime/runtime-object.cc
diff --git a/src/runtime/runtime-object.cc b/src/runtime/runtime-object.cc
index a1d9dfa94d636cb622f6600f7d9dfcf866ce52f7..d2f1ee88e784c28230df03fac664dbdf8ded6151 100644
--- a/src/runtime/runtime-object.cc
+++ b/src/runtime/runtime-object.cc
@@ -1491,6 +1491,58 @@ RUNTIME_FUNCTION(Runtime_StrictEquals) {
 }
 
 
+// TODO(bmeurer): Kill this special wrapper and use TF compatible LessThan,
+// GreaterThan, etc. which return true or false.
+RUNTIME_FUNCTION(Runtime_Compare) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(3, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
+  CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
+  CONVERT_ARG_HANDLE_CHECKED(Object, ncr, 2);
+  Maybe<ComparisonResult> result = Object::Compare(x, y);
+  if (result.IsJust()) {
+    switch (result.FromJust()) {
+      case ComparisonResult::kLessThan:
+        return Smi::FromInt(LESS);
+      case ComparisonResult::kEqual:
+        return Smi::FromInt(EQUAL);
+      case ComparisonResult::kGreaterThan:
+        return Smi::FromInt(GREATER);
+      case ComparisonResult::kUndefined:
+        return *ncr;
+    }
+    UNREACHABLE();
+  }
+  return isolate->heap()->exception();
+}
+
+
+// TODO(bmeurer): Kill this special wrapper and use TF compatible LessThan,
+// GreaterThan, etc. which return true or false.
+RUNTIME_FUNCTION(Runtime_Compare_Strong) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(3, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, x, 0);
+  CONVERT_ARG_HANDLE_CHECKED(Object, y, 1);
+  CONVERT_ARG_HANDLE_CHECKED(Object, ncr, 2);
+  Maybe<ComparisonResult> result = Object::Compare(x, y, Strength::STRONG);
+  if (result.IsJust()) {
+    switch (result.FromJust()) {
+      case ComparisonResult::kLessThan:
+        return Smi::FromInt(LESS);
+      case ComparisonResult::kEqual:
+        return Smi::FromInt(EQUAL);
+      case ComparisonResult::kGreaterThan:
+        return Smi::FromInt(GREATER);
+      case ComparisonResult::kUndefined:
+        return *ncr;
+    }
+    UNREACHABLE();
+  }
+  return isolate->heap()->exception();
+}
+
+
 RUNTIME_FUNCTION(Runtime_InstanceOf) {
   // ECMA-262, section 11.8.6, page 54.
   HandleScope shs(isolate);