var_abstract: Use the string representation of Type.

At the moment some Status and Log messages log the var Type enum which will just be an integer. Change this to use the string representation of the enum type.

PiperOrigin-RevId: 608954450
Change-Id: I24447320b5f6f9f8ed22c91ca41f602bdf2ddbb8

sandboxed_api/var_abstract.cc

@@ -29,6 +29,7 @@
 #include "sandboxed_api/util/raw_logging.h"
 #include "sandboxed_api/util/status_macros.h"
 #include "sandboxed_api/var_ptr.h"
+#include "sandboxed_api/var_type.h"
 
 namespace sapi::v {
 
@@ -98,9 +99,10 @@ absl::Status Var::TransferToSandboxee(RPCChannel* rpc_channel, pid_t pid) {
           << ", size: " << GetSize();
 
   if (remote_ == nullptr) {
-    LOG(WARNING) << "Object: " << GetType() << " has no remote object set";
+    LOG(WARNING) << "Object: " << GetTypeString()
+                 << " has no remote object set";
     return absl::FailedPreconditionError(
-        absl::StrCat("Object: ", GetType(), " has no remote object set"));
+        absl::StrCat("Object: ", GetTypeString(), " has no remote object set"));
   }
 
   struct iovec local = {
@@ -136,7 +138,7 @@ absl::Status Var::TransferFromSandboxee(RPCChannel* rpc_channel, pid_t pid) {
 
   if (local_ == nullptr) {
     return absl::FailedPreconditionError(
-        absl::StrCat("Object: ", GetType(), " has no local storage set"));
+        absl::StrCat("Object: ", GetTypeString(), " has no local storage set"));
   }
 
   struct iovec local = {