Remove CallFunctionStub, always call through the Call builtin (also from CallIC)

src/full-codegen/full-codegen.h

Index: src/full-codegen/full-codegen.h
diff --git a/src/full-codegen/full-codegen.h b/src/full-codegen/full-codegen.h
index 3aad2e01be6b74efc83e1a0fbcc616de9b811f7d..cc1147b86f20fd61b7cd61c47441108b0ed41151 100644
--- a/src/full-codegen/full-codegen.h
+++ b/src/full-codegen/full-codegen.h
@@ -463,7 +463,7 @@ class FullCodeGenerator: public AstVisitor {
   void EmitReturnSequence();
 
   // Platform-specific code sequences for calls
-  void EmitCall(Call* expr, CallICState::CallType = CallICState::FUNCTION);
+  void EmitCall(Call* expr);
   void EmitSuperConstructorCall(Call* expr);
   void EmitCallWithLoadIC(Call* expr);
   void EmitSuperCallWithLoadIC(Call* expr);