Add the missing include for ABSL_HAVE_EXCEPTIONS (#6447)

var-const · web-flow · commit 9700e26f6b7e · 2020-09-14T17:52:47.000-04:00
diff --git a/Firestore/core/src/util/exception.h b/Firestore/core/src/util/exception.h
@@ -37,6 +37,7 @@
 
 #include "Firestore/core/src/util/string_format.h"
 #include "absl/base/attributes.h"
+#include "absl/base/config.h"
 
 namespace firebase {
 namespace firestore {
