[Heap] Use Aquire/Release semantics for SFI::function_data

BUG=v8:8751,v8:8752

Change-Id: Ib99d5b9c399d5f2ab616399fdd3c7f190e2d0399
Reviewed-on: https://chromium-review.googlesource.com/c/1445971Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59203}

src/objects/shared-function-info-inl.h

@@ -177,11 +177,11 @@ AbstractCode SharedFunctionInfo::abstract_code() {
 }
 
 Object SharedFunctionInfo::function_data() const {
-  return RELAXED_READ_FIELD(*this, kFunctionDataOffset);
+  return ACQUIRE_READ_FIELD(*this, kFunctionDataOffset);
 }
 
 void SharedFunctionInfo::set_function_data(Object data, WriteBarrierMode mode) {
-  RELAXED_WRITE_FIELD(*this, kFunctionDataOffset, data);
+  RELEASE_WRITE_FIELD(*this, kFunctionDataOffset, data);
   CONDITIONAL_WRITE_BARRIER(*this, kFunctionDataOffset, data, mode);
 }