Merge pull request #13883 from slavapestov/fix-test-32bit

IRGen: Fix protocol_resilience_thunks test on 32-bit

Author: slavapestov

lib/AST/Decl.cpp

@@ -1275,7 +1275,7 @@ static bool isPolymorphic(const AbstractStorageDecl *storage) {
     return true;
   }
 
-  if (auto *protoDecl = dyn_cast<ProtocolDecl>(storage->getDeclContext()))
+  if (isa<ProtocolDecl>(storage->getDeclContext()))
     return true;
 
   return false;

lib/Demangling/NodePrinter.cpp

@@ -1043,7 +1043,7 @@ NodePointer NodePrinter::print(NodePointer Node, bool asPrefixContext) {
 
     print(Type);
 
-    if (auto isVariadic = getChildIf(Node, Node::Kind::VariadicMarker))
+    if (getChildIf(Node, Node::Kind::VariadicMarker))
       Printer << "...";
     return nullptr;
   }

test/IRGen/protocol_resilience_thunks.swift

@@ -47,11 +47,11 @@ public protocol MyResilientProtocol {
 // CHECK-NEXT: call swiftcc void [[FN]](%Any* noalias nocapture sret %0, %swift.opaque* noalias nocapture swiftself %1, %swift.type* %2, i8** %3)
 // CHECK-NEXT: ret void
 
-// CHECK-LABEL: define{{( protected)?}} swiftcc void @"$S26protocol_resilience_thunks19MyResilientProtocolP12throwingFuncyyKFTj"(%swift.opaque* noalias nocapture swiftself, %swift.error** swifterror, %swift.type*, i8**)
+// CHECK-LABEL: define{{( protected)?}} swiftcc void @"$S26protocol_resilience_thunks19MyResilientProtocolP12throwingFuncyyKFTj"(%swift.opaque* noalias nocapture swiftself, %swift.error**{{( swifterror)?}}, %swift.type*, i8**)
 // CHECK:      [[WITNESS_ADDR:%.*]] = getelementptr inbounds i8*, i8** %3, i32 3
 // CHECK-NEXT: [[WITNESS:%.*]] = load i8*, i8** [[WITNESS_ADDR]]
 // CHECK-NEXT: [[FN:%.*]] = bitcast i8* [[WITNESS]] to void (%swift.opaque*, %swift.error**, %swift.type*, i8**)*
-// CHECK-NEXT: call swiftcc void [[FN]](%swift.opaque* noalias nocapture swiftself %0, %swift.error** swifterror %1, %swift.type* %2, i8** %3)
+// CHECK-NEXT: call swiftcc void [[FN]](%swift.opaque* noalias nocapture swiftself %0, %swift.error**{{( swifterror)?}} %1, %swift.type* %2, i8** %3)
 // CHECK-NEXT: ret void
 
 // CHECK-LABEL: define{{( protected)?}} swiftcc void @"$S26protocol_resilience_thunks19MyResilientProtocolP11genericFuncyqd__qd__lFTj"(%swift.opaque* noalias nocapture sret, %swift.opaque* noalias nocapture, %swift.type*, %swift.opaque* noalias nocapture swiftself, %swift.type*, i8**)