[build] fix MSVC build issues

on latest MSVC, build will fail due to error C1017

log: https://github.com/bnoordhuis/v8-cmake/runs/6473602404
Change-Id: Ida6a4f1cbace68cbfc5aa7d4df2e7829fc755a55
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3653496Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80614}

src/codegen/arm64/macro-assembler-arm64-inl.h

@@ -1249,7 +1249,7 @@ void TurboAssembler::Claim(int64_t count, uint64_t unit_size) {
     return;
   }
   DCHECK_EQ(size % 16, 0);
-#if V8_TARGET_OS_WIN
+#ifdef V8_TARGET_OS_WIN
   while (size > kStackPageSize) {
     Sub(sp, sp, kStackPageSize);
     Str(xzr, MemOperand(sp));
@@ -1271,7 +1271,7 @@ void TurboAssembler::Claim(const Register& count, uint64_t unit_size) {
   }
   AssertPositiveOrZero(count);
 
-#if V8_TARGET_OS_WIN
+#ifdef V8_TARGET_OS_WIN
   // "Functions that allocate 4k or more worth of stack must ensure that each
   // page prior to the final page is touched in order." Source:
   // https://docs.microsoft.com/en-us/cpp/build/arm64-windows-abi-conventions?view=vs-2019#stack

src/codegen/x64/interface-descriptors-x64-inl.h

@@ -34,7 +34,7 @@ void StaticCallInterfaceDescriptor<DerivedDescriptor>::
 
 // static
 constexpr auto WriteBarrierDescriptor::registers() {
-#if V8_TARGET_OS_WIN
+#ifdef V8_TARGET_OS_WIN
   return RegisterArray(rdi, r8, rcx, rax, r9, rdx, rsi);
 #else
   return RegisterArray(rdi, rbx, rdx, rcx, rax, rsi);

src/d8/d8.cc

@@ -4451,7 +4451,7 @@ void Worker::PostMessageOut(const v8::FunctionCallbackInfo<v8::Value>& args) {
   }
 }
 
-#if V8_TARGET_OS_WIN
+#ifdef V8_TARGET_OS_WIN
 // Enable support for unicode filename path on windows.
 // We first convert ansi encoded argv[i] to utf16 encoded, and then
 // convert utf16 encoded to utf8 encoded with setting the argv[i]