CallIC and KeyedCallIC not wrapping this.

src/x64/stub-cache-x64.cc

Index: src/x64/stub-cache-x64.cc
diff --git a/src/x64/stub-cache-x64.cc b/src/x64/stub-cache-x64.cc
index 973fece32ad01f8b809d627df9dad0e9144ab929..c27e1b8c42addcd2c527541a7044a3c5360e0525 100644
--- a/src/x64/stub-cache-x64.cc
+++ b/src/x64/stub-cache-x64.cc
@@ -2060,8 +2060,9 @@ MaybeObject* CallStubCompiler::CompileCallConstant(Object* object,
       break;
 
     case STRING_CHECK:
-      if (!function->IsBuiltin()) {
-        // Calling non-builtins with a value as receiver requires boxing.
+      if (!function->IsBuiltin() && !function_info->strict_mode()) {
+        // Calling non-strict non-builtins with a value as the receiver
+        // requires boxing.
         __ jmp(&miss);
       } else {
         // Check that the object is a two-byte string or a symbol.
@@ -2076,8 +2077,9 @@ MaybeObject* CallStubCompiler::CompileCallConstant(Object* object,
       break;
 
     case NUMBER_CHECK: {
-      if (!function->IsBuiltin()) {
-        // Calling non-builtins with a value as receiver requires boxing.
+      if (!function->IsBuiltin() && !function_info->strict_mode()) {
+        // Calling non-strict non-builtins with a value as the receiver
+        // requires boxing.
         __ jmp(&miss);
       } else {
         Label fast;
@@ -2096,8 +2098,9 @@ MaybeObject* CallStubCompiler::CompileCallConstant(Object* object,
     }
 
     case BOOLEAN_CHECK: {
-      if (!function->IsBuiltin()) {
-        // Calling non-builtins with a value as receiver requires boxing.
+      if (!function->IsBuiltin() && !function_info->strict_mode()) {
+        // Calling non-strict non-builtins with a value as the receiver
+        // requires boxing.
         __ jmp(&miss);
       } else {
         Label fast;