Install a generic handler whenever we fail to update the IC.

src/builtins.cc

Index: src/builtins.cc
diff --git a/src/builtins.cc b/src/builtins.cc
index d97a4778afba13fa8307a7e5c6baa74195765824..fd7dd8a60dd7b304424063ea81a2cd1353ef3f75 100644
--- a/src/builtins.cc
+++ b/src/builtins.cc
@@ -1496,12 +1496,12 @@ static void Generate_StoreIC_Megamorphic_Strict(MacroAssembler* masm) {
 
 
 static void Generate_StoreIC_GlobalProxy(MacroAssembler* masm) {
-  StoreIC::GenerateGlobalProxy(masm, kNonStrictMode);
+  StoreIC::GenerateRuntimeSetProperty(masm, kNonStrictMode);
 }
 
 
 static void Generate_StoreIC_GlobalProxy_Strict(MacroAssembler* masm) {
-  StoreIC::GenerateGlobalProxy(masm, kStrictMode);
+  StoreIC::GenerateRuntimeSetProperty(masm, kStrictMode);
 }
 
 
@@ -1510,6 +1510,16 @@ static void Generate_StoreIC_Setter_ForDeopt(MacroAssembler* masm) {
 }
 
 
+static void Generate_StoreIC_Generic(MacroAssembler* masm) {
+  StoreIC::GenerateRuntimeSetProperty(masm, kNonStrictMode);
+}
+
+
+static void Generate_StoreIC_Generic_Strict(MacroAssembler* masm) {
+  StoreIC::GenerateRuntimeSetProperty(masm, kStrictMode);
+}
+
+
 static void Generate_KeyedStoreIC_Generic(MacroAssembler* masm) {
   KeyedStoreIC::GenerateGeneric(masm, kNonStrictMode);
 }