[turbofan] Simplifying handling of callee-cleanup stack area.

src/compiler/x87/code-generator-x87.cc

Index: src/compiler/x87/code-generator-x87.cc
diff --git a/src/compiler/x87/code-generator-x87.cc b/src/compiler/x87/code-generator-x87.cc
index 1335d3f56809d832b612e8e3e7d711a0a3b641a3..bd984113f74179496bfccdb6855e5dfd4403fec2 100644
--- a/src/compiler/x87/code-generator-x87.cc
+++ b/src/compiler/x87/code-generator-x87.cc
@@ -1597,11 +1597,7 @@ void CodeGenerator::AssembleReturn() {
       __ bind(&return_label_);
       __ mov(esp, ebp);  // Move stack pointer back to frame pointer.
       __ pop(ebp);       // Pop caller's frame pointer.
-      int pop_count = descriptor->IsJSFunctionCall()
-                          ? static_cast<int>(descriptor->JSParameterCount())
-                          : (info()->IsStub()
-                                 ? info()->code_stub()->GetStackParameterCount()
-                                 : 0);
+      int pop_count = static_cast<int>(descriptor->StackParameterCount());
       if (pop_count == 0) {
         __ ret(0);
       } else {