[region-isolation] Tweak the logging to make it easier to quickly find the emitted error when triaging code.

Just trying to improve my triaging speed by making it easier to triage.

(cherry picked from commit a36b374)

Author: gottesmm

include/swift/SILOptimizer/Utils/SILIsolationInfo.h

@@ -290,6 +290,12 @@ class SILIsolationInfo {
     return isolatedValue;
   }
 
+  SILValue maybeGetIsolatedValue() const {
+    if (kind != Task && kind != Actor)
+      return SILValue();
+    return getIsolatedValue();
+  }
+
   /// Return the specific SILValue for the actor that our isolated value is
   /// isolated to if one exists.
   ActorInstance getActorInstance() const {

lib/SILOptimizer/Mandatory/TransferNonSendable.cpp

@@ -1211,8 +1211,8 @@ void TransferNonSendableImpl::emitUseAfterTransferDiagnostics() {
   if (transferOpToRequireInstMultiMap.empty())
     return;
 
-  REGIONBASEDISOLATION_LOG(llvm::dbgs()
-                           << "Emitting use after transfer diagnostics.\n");
+  REGIONBASEDISOLATION_LOG(
+      llvm::dbgs() << "Emitting Error. Kind: Use After Send diagnostics.\n");
 
   for (auto [transferOp, requireInsts] :
        transferOpToRequireInstMultiMap.getRange()) {
@@ -1964,8 +1964,8 @@ void TransferNonSendableImpl::emitTransferredNonTransferrableDiagnostics() {
   if (transferredNonTransferrableInfoList.empty())
     return;
 
-  REGIONBASEDISOLATION_LOG(
-      llvm::dbgs() << "Emitting transfer non transferrable diagnostics.\n");
+  REGIONBASEDISOLATION_LOG(llvm::dbgs()
+                           << "Emitting Error. Kind: Send Never Sendable.\n");
 
   for (auto info : transferredNonTransferrableInfoList) {
     TransferNonTransferrableDiagnosticInferrer diagnosticInferrer(
@@ -2367,7 +2367,7 @@ struct DiagnosticEvaluator final
     auto rep = info->getValueMap().getRepresentative(transferredVal);
     REGIONBASEDISOLATION_LOG(
         llvm::dbgs()
-        << "    Emitting Use After Transfer Error!\n"
+        << "    Emitting Error. Kind: Use After Send\n"
         << "        Transferring Inst: " << *transferringOp->getUser()
         << "        Transferring Op Value: " << transferringOp->get()
         << "        Require Inst: " << *partitionOp.getSourceInst()
@@ -2383,7 +2383,7 @@ struct DiagnosticEvaluator final
       const PartitionOp &partitionOp, Element transferredVal,
       SILDynamicMergedIsolationInfo isolationRegionInfo) const {
     REGIONBASEDISOLATION_LOG(
-        llvm::dbgs() << "    Emitting TransferNonTransferrable Error!\n"
+        llvm::dbgs() << "    Emitting Error. Kind: Send Non Sendable\n"
                      << "        ID:  %%" << transferredVal << "\n"
                      << "        Rep: "
                      << *info->getValueMap().getRepresentative(transferredVal)
@@ -2402,7 +2402,8 @@ struct DiagnosticEvaluator final
       const PartitionOp &partitionOp, Element inoutSendingVal,
       SILDynamicMergedIsolationInfo isolationRegionInfo) const {
     REGIONBASEDISOLATION_LOG(
-        llvm::dbgs() << "    Emitting InOut Sending ActorIsolated at end of "
+        llvm::dbgs() << "    Emitting Error. Kind: InOut Sending ActorIsolated "
+                        "at end of "
                         "Function Error!\n"
                      << "        ID:  %%" << inoutSendingVal << "\n"
                      << "        Rep: "
@@ -2424,7 +2425,7 @@ struct DiagnosticEvaluator final
       Element actualNonTransferrableValue,
       SILDynamicMergedIsolationInfo isolationRegionInfo) const {
     REGIONBASEDISOLATION_LOG(
-        llvm::dbgs() << "    Emitting TransferNonTransferrable Error!\n"
+        llvm::dbgs() << "    Emitting Error. Kind: Send Non Sendable\n"
                      << "        ID:  %%" << transferredVal << "\n"
                      << "        Rep: "
                      << *info->getValueMap().getRepresentative(transferredVal)
@@ -2469,7 +2470,7 @@ struct DiagnosticEvaluator final
     auto srcRep = info->getValueMap().getRepresentativeValue(srcElement);
     REGIONBASEDISOLATION_LOG(
         llvm::dbgs()
-        << "    Emitting Error! Kind: Assign Isolated Into Sending Result!\n"
+        << "    Emitting Error. Kind: Assign Isolated Into Sending Result!\n"
         << "        Assign Inst: " << *partitionOp.getSourceInst()
         << "        Dest Value: " << *destValue
         << "        Dest Element: " << destElement << '\n'
@@ -2488,7 +2489,8 @@ struct DiagnosticEvaluator final
     auto rep = info->getValueMap().getRepresentative(inoutSendingVal);
     REGIONBASEDISOLATION_LOG(
         llvm::dbgs()
-        << "    Emitting InOut Not Reinitialized At End Of Function!\n"
+        << "    Emitting Error. Kind: InOut Not Reinitialized At End Of "
+           "Function\n"
         << "        Transferring Inst: " << *transferringOp->getUser()
         << "        Transferring Op Value: " << transferringOp->get()
         << "        Require Inst: " << *partitionOp.getSourceInst()