[turbofan] Don't report failed map check as failed instance migration.

src/compiler/effect-control-linearizer.cc

Index: src/compiler/effect-control-linearizer.cc
diff --git a/src/compiler/effect-control-linearizer.cc b/src/compiler/effect-control-linearizer.cc
index 1aa0ec6668c8ea5e228447ab3c3a082014acf9d5..36417ed7bacfff2f76e2c58f1b6844e8e01e090e 100644
--- a/src/compiler/effect-control-linearizer.cc
+++ b/src/compiler/effect-control-linearizer.cc
@@ -1102,16 +1102,14 @@ Node* EffectControlLinearizer::LowerCheckMaps(Node* node, Node* frame_state) {
     // Perform the (deferred) instance migration.
     __ Bind(&migrate);
     {
-      auto migration_failed = __ MakeLabel<2>();
-      auto retry_check_maps = __ MakeLabel<2>();
-
       // If map is not deprecated the migration attempt does not make sense.
       Node* bitfield3 =
           __ LoadField(AccessBuilder::ForMapBitField3(), value_map);
       Node* if_not_deprecated = __ WordEqual(
           __ Word32And(bitfield3, __ Int32Constant(Map::Deprecated::kMask)),
           __ Int32Constant(0));
-      __ GotoIf(if_not_deprecated, &migration_failed);
+      __ DeoptimizeIf(DeoptimizeReason::kWrongMap, if_not_deprecated,
+                      frame_state);
 
       Operator::Properties properties = Operator::kNoDeopt | Operator::kNoThrow;
       Runtime::FunctionId id = Runtime::kTryMigrateInstance;
@@ -1122,15 +1120,8 @@ Node* EffectControlLinearizer::LowerCheckMaps(Node* node, Node* frame_state) {
                   __ ExternalConstant(ExternalReference(id, isolate())),
                   __ Int32Constant(1), __ NoContextConstant());
       Node* check = ObjectIsSmi(result);
-      __ GotoIf(check, &retry_check_maps);
-      __ Goto(&migration_failed);
-
-      __ Bind(&migration_failed);
-      __ DeoptimizeIf(DeoptimizeReason::kInstanceMigrationFailed,
-                      __ Int32Constant(1), frame_state);
-
-      __ Goto(&retry_check_maps);
-      __ Bind(&retry_check_maps);
+      __ DeoptimizeIf(DeoptimizeReason::kInstanceMigrationFailed, check,
+                      frame_state);
     }
 
     // Reload the current map of the {value}.