[PDB] Add BinaryStreamError.

This migrates the stream code away from MSFError to using its
own custom Error class.

llvm-svn: 296494

1 files changed, 4 insertions, 5 deletions

diff --git a/llvm/lib/DebugInfo/PDB/Native/PDBFile.cpp b/llvm/lib/DebugInfo/PDB/Native/PDBFile.cpp
index 03257c40829..b2c8ac30e54 100644
--- a/llvm/lib/DebugInfo/PDB/Native/PDBFile.cpp
+++ b/llvm/lib/DebugInfo/PDB/Native/PDBFile.cpp
@@ -396,11 +396,10 @@ bool PDBFile::hasStringTable() {
   return IS->getNamedStreamIndex("/names") < getNumStreams();
 }
 
-/// Wrapper around MappedBlockStream::createIndexedStream()
-/// that checks if a stream with that index actually exists.
-/// If it does not, the return value will have an MSFError with
-/// code msf_error_code::no_stream. Else, the return value will
-/// contain the stream returned by createIndexedStream().
+/// Wrapper around MappedBlockStream::createIndexedStream() that checks if a
+/// stream with that index actually exists.  If it does not, the return value
+/// will have an MSFError with code msf_error_code::no_stream.  Else, the return
+/// value will contain the stream returned by createIndexedStream().
 Expected<std::unique_ptr<MappedBlockStream>>
 PDBFile::safelyCreateIndexedStream(const MSFLayout &Layout,
                                    BinaryStreamRef MsfData,