[Interpreter] Add test for sloppy mode receiver replacement.

src/arm/builtins-arm.cc

Index: src/arm/builtins-arm.cc
diff --git a/src/arm/builtins-arm.cc b/src/arm/builtins-arm.cc
index 9539bf10014ddb49a0913e8c5c5eb19756d4e525..b83bda1b0cd2b81224f2dcf55b4b70178b8a1f3f 100644
--- a/src/arm/builtins-arm.cc
+++ b/src/arm/builtins-arm.cc
@@ -924,9 +924,6 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
   //  - Support profiler (specifically profiling_counter).
   //  - Call ProfileEntryHookStub when isolate has a function_entry_hook.
   //  - Allow simulator stop operations if FLAG_stop_at is set.
-  //  - Deal with sloppy mode functions which need to replace the
-  //    receiver with the global proxy when called as functions (without an
-  //    explicit receiver object).
   //  - Code aging of the BytecodeArray object.
 
   // Perform stack guard check.