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

test/cctest/compiler/test-linkage.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/code-stubs.h"
 #include "src/compiler.h"
 #include "src/parser.h"
 #include "src/zone.h"
@@ skipping 62 matching lines @@
 }
 
 
 TEST(TestLinkageCodeStubIncoming) {
   Isolate* isolate = CcTest::InitIsolateOnce();
   Zone zone;
   ToNumberStub stub(isolate);
   CompilationInfo info(&stub, isolate, &zone);
   CallDescriptor* descriptor = Linkage::ComputeIncoming(&zone, &info);
   CHECK(descriptor);
-  CHECK_EQ(1, static_cast<int>(descriptor->JSParameterCount()));
+  CHECK_EQ(0, static_cast<int>(descriptor->StackParameterCount()));
   CHECK_EQ(1, static_cast<int>(descriptor->ReturnCount()));
   CHECK_EQ(Operator::kNoProperties, descriptor->properties());
   CHECK_EQ(false, descriptor->IsJSFunctionCall());
 }
 
 
 TEST(TestLinkageJSCall) {
   HandleAndZoneScope handles;
   Handle<JSFunction> function = Compile("a + c");
   ParseInfo parse_info(handles.main_zone(), function);
@@ skipping 14 matching lines @@
 TEST(TestLinkageRuntimeCall) {
   // TODO(titzer): test linkage creation for outgoing runtime calls.
 }
 
 
 TEST(TestLinkageStubCall) {
   // TODO(titzer): test linkage creation for outgoing stub calls.
 }
 
 #endif  // V8_TURBOFAN_TARGET