clang-format: Fix crasher when a UTF8 character is found in an escape

sequence. Discovered by the fuzzer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@242738 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/Format/Encoding.h b/lib/Format/Encoding.h
index 766d29274c..592d7201a8 100644
--- a/lib/Format/Encoding.h
+++ b/lib/Format/Encoding.h
@@ -135,7 +135,7 @@ inline unsigned getEscapeSequenceLength(StringRef Text) {
         ++I;
       return I;
     }
-    return 2;
+    return 1 + getNumBytesForUTF8(Text[1]);
   }
 }