Fix MSVC 'not all control paths return a value' warning.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@298712 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Index/IndexingContext.cpp b/lib/Index/IndexingContext.cpp
index c5ccf45957a4efacc86b87089901a913ba2090dc..f393b11ab884768706bf27060f3a662da4ab9a0e 100644 (file)
--- a/lib/Index/IndexingContext.cpp
+++ b/lib/Index/IndexingContext.cpp
@@ -235,6 +235,7 @@ static bool shouldReportOccurrenceForSystemDeclOnlyMode(
       case SymbolRole::RelationContainedBy:
         return true;
       }
+      llvm_unreachable("Unsupported SymbolRole value!");
     });
     return accept;
   };