[torque] Check pointer size when generating debug helper code

This fixes an issue found by the upcoming change that verifies a match
between 32-bit Torque output from a 32-bit build and 32-bit output from
a 64-bit build: https://crrev.com/c/v8/v8/+/1998078 . 32-bit output
never needs to deal with pointer compression.

Bug: v8:10124

Change-Id: I0e04728dafc4118a8816a3afa98651dddea7a574
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2001460Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#65962}

src/torque/class-debug-reader-generator.cc

@@ -137,7 +137,8 @@ class DebugFieldType {
       return "";
     }
     if (IsTagged()) {
-      if (storage == kAsStoredInHeap && COMPRESS_POINTERS_BOOL) {
+      if (storage == kAsStoredInHeap &&
+          TargetArchitecture::ArePointersCompressed()) {
         return "v8::internal::TaggedValue";
       }
       base::Optional<const ClassType*> field_class_type =

src/torque/global-context.h

@@ -102,6 +102,7 @@ class TargetArchitecture : public ContextualClass<TargetArchitecture> {
   static size_t TaggedSize() { return Get().tagged_size_; }
   static size_t RawPtrSize() { return Get().raw_ptr_size_; }
   static size_t MaxHeapAlignment() { return TaggedSize(); }
+  static bool ArePointersCompressed() { return TaggedSize() < RawPtrSize(); }
 
  private:
   const size_t tagged_size_;