[Concurrency] adjust how we fail creating an IsIsolatingCurrentContextDecision

Author: ktoso

include/swift/ABI/Executor.h

@@ -17,12 +17,10 @@
 #ifndef SWIFT_ABI_EXECUTOR_H
 #define SWIFT_ABI_EXECUTOR_H
 
-#include "../../../stdlib/public/Concurrency/Error.h"
-
+#include <inttypes.h>
 #include "swift/ABI/Actor.h"
 #include "swift/ABI/HeapObject.h"
 #include "swift/Runtime/Casting.h"
-#include <inttypes.h>
 
 namespace swift {
 class AsyncContext;
@@ -434,8 +432,7 @@ getIsIsolatingCurrentContextDecisionFromInt(int8_t value) {
   case 0: return IsIsolatingCurrentContextDecision::NotIsolated;
   case 1: return IsIsolatingCurrentContextDecision::Isolated;
   default:
-    swift_Concurrency_fatalError(0, "Unexpected IsIsolatingCurrentContextDecision value");
-    return IsIsolatingCurrentContextDecision::Unknown; // silence warning about missing return
+    fatalError(0, "Unexpected IsIsolatingCurrentContextDecision value");
   }
 }
 
@@ -445,8 +442,7 @@ inline StringRef getIsIsolatingCurrentContextDecisionNameStr(IsIsolatingCurrentC
     case IsIsolatingCurrentContextDecision::NotIsolated: return "NotIsolated";
     case IsIsolatingCurrentContextDecision::Isolated: return "Isolated";
   }
-  swift_Concurrency_fatalError(0, "Unexpected IsIsolatingCurrentContextDecision value");
-  return "<Unexpected Value>"; // silence warning about missing return
+  fatalError(0, "Unexpected IsIsolatingCurrentContextDecision value");
 }
 
 }