Revert of Revert of [strong] Implement strong mode restrictions on property access

src/builtins.cc

Index: src/builtins.cc
diff --git a/src/builtins.cc b/src/builtins.cc
index 506492f46ef2f1c825b3f21ab616bc8f8a4ab221..fe58a0953cd72e76a672c64eefd43427715f30f6 100644
--- a/src/builtins.cc
+++ b/src/builtins.cc
@@ -1278,17 +1278,12 @@
 
 
 static void Generate_LoadIC_Slow(MacroAssembler* masm) {
-  LoadIC::GenerateRuntimeGetProperty(masm);
-}
-
-
-static void Generate_KeyedLoadIC_Initialize(MacroAssembler* masm) {
-  KeyedLoadIC::GenerateInitialize(masm);
+  NamedLoadHandlerCompiler::GenerateSlow(masm);
 }
 
 
 static void Generate_KeyedLoadIC_Slow(MacroAssembler* masm) {
-  KeyedLoadIC::GenerateRuntimeGetProperty(masm);
+  ElementHandlerCompiler::GenerateLoadSlow(masm);
 }
 
 
@@ -1298,7 +1293,12 @@
 
 
 static void Generate_KeyedLoadIC_Megamorphic(MacroAssembler* masm) {
-  KeyedLoadIC::GenerateMegamorphic(masm);
+  KeyedLoadIC::GenerateMegamorphic(masm, SLOPPY);
+}
+
+
+static void Generate_KeyedLoadIC_Megamorphic_Strong(MacroAssembler* masm) {
+  KeyedLoadIC::GenerateMegamorphic(masm, STRONG);
 }