Define ErrorInfo::ID explicitly.

llvm-svn: 264293
diff --git a/llvm/lib/Support/Error.cpp b/llvm/lib/Support/Error.cpp
index ebf4d65..5bda6aa 100644
--- a/llvm/lib/Support/Error.cpp
+++ b/llvm/lib/Support/Error.cpp
@@ -37,6 +37,9 @@
 void ErrorInfoBase::anchor() {}
 char ErrorInfoBase::ID = 0;
 
+template <> char ErrorInfo<ErrorList>::ID = 0;
+template <> char ErrorInfo<ECError>::ID = 0;
+
 static ManagedStatic<ErrorErrorCategory> ErrorErrorCat;
 
 std::error_code ErrorList::convertToErrorCode() const {