[strong] Check arity of functions

src/ia32/builtins-ia32.cc

Index: src/ia32/builtins-ia32.cc
diff --git a/src/ia32/builtins-ia32.cc b/src/ia32/builtins-ia32.cc
index 499044360f43b4b4cd81828b5a05eafa87318532..6b39f6442df40828f3ad0bc81cb763672f1586fb 100644
--- a/src/ia32/builtins-ia32.cc
+++ b/src/ia32/builtins-ia32.cc
@@ -1577,6 +1577,21 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
 
   {  // Too few parameters: Actual < expected.
     __ bind(&too_few);
+
+    // If the function is strong we need to throw an error.
+    Label weak_function;
+    __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
+    __ test_b(FieldOperand(ecx, SharedFunctionInfo::kStrongModeByteOffset),
+              1 << SharedFunctionInfo::kStrongModeBitWithinByte);
+    __ j(equal, &weak_function, Label::kNear);
+
+    {
+      FrameScope frame(masm, StackFrame::MANUAL);
+      EnterArgumentsAdaptorFrame(masm);
+      __ CallRuntime(Runtime::kThrowStrongModeTooFewArguments, 0);
+    }
+
+    __ bind(&weak_function);
     EnterArgumentsAdaptorFrame(masm);
 
     // Copy receiver and all actual arguments.