[ORC] Thread Error/Expected through the RPC library.

This replaces use of std::error_code and ErrorOr in the ORC RPC support library
with Error and Expected. This required updating the OrcRemoteTarget API, Client,
and server code, as well as updating the Orc C API.

This patch also fixes several instances where Errors were dropped.

llvm-svn: 267457

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/ExecutionEngine/Orc/OrcError.cpp b/llvm/lib/ExecutionEngine/Orc/OrcError.cpp
index 5e12c86..37b4990 100644
--- a/llvm/lib/ExecutionEngine/Orc/OrcError.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/OrcError.cpp
@@ -51,9 +51,10 @@ static ManagedStatic<OrcErrorCategory> OrcErrCat;
 namespace llvm {
 namespace orc {
 
-std::error_code orcError(OrcErrorCode ErrCode) {
+Error orcError(OrcErrorCode ErrCode) {
   typedef std::underlying_type<OrcErrorCode>::type UT;
-  return std::error_code(static_cast<UT>(ErrCode), *OrcErrCat);
+  return errorCodeToError(std::error_code(static_cast<UT>(ErrCode),
+                                          *OrcErrCat));
 }
 }
 }