[turbofan] Support lazy deopt for truncating store to a typed array.

src/compiler/operator-properties.cc

Index: src/compiler/operator-properties.cc
diff --git a/src/compiler/operator-properties.cc b/src/compiler/operator-properties.cc
index 05891e1a743275dcd081c4cfe791e62775538007..3a91fd6b581b5e6a94e68f36df95efb4fd09ff0a 100644
--- a/src/compiler/operator-properties.cc
+++ b/src/compiler/operator-properties.cc
@@ -64,12 +64,17 @@ int OperatorProperties::GetFrameStateInputCount(const Operator* op) {
 
     // Properties
     case IrOpcode::kJSLoadNamed:
-    case IrOpcode::kJSLoadProperty:
     case IrOpcode::kJSStoreNamed:
-    case IrOpcode::kJSStoreProperty:
+    case IrOpcode::kJSLoadProperty:
     case IrOpcode::kJSDeleteProperty:
       return 1;
 
+    // StoreProperty provides a second frame state just before
+    // the operation. This is used to lazy-deoptimize a to-number
+    // conversion for typed arrays.
+    case IrOpcode::kJSStoreProperty:
+      return 2;
+
     // Binary operators that can deopt in the middle the operation (e.g.,
     // as a result of lazy deopt in ToNumber conversion) need a second frame
     // state so that we can resume before the operation.