Generate one enum per enum case for the testing.

This is a workaround for apple#904, the underlying problem is still there, but this
makes the generated source file for testing "work" in that it doesn't hit the
compile failure. A real solution is still needed for large enums.

Author: thomasvl

Makefile

@@ -461,10 +461,12 @@ Protos/generated_swift_names_enum_cases.proto: Protos/mined_words.txt
 	@echo '// Swift compile errors are probably bugs in protoc-gen-swift' >> $@
 	@echo 'syntax = "proto3";' >> $@
 	@echo 'package protobuf_unittest_generated;' >> $@
-	@echo 'enum GeneratedSwiftReservedEnum {' >> $@
-	@echo '  NONE = 0;' >> $@
-	@cat Protos/mined_words.txt | awk 'BEGIN{n = 1} {print "  " $$1 " = " n ";"; n += 1 }' >> $@
-	@echo '}' >> $@
+	@#See https://github.com/apple/swift-protobuf/issues/904 for why this isn't one enum.
+	@#echo 'enum GeneratedSwiftReservedEnum {' >> $@
+	@#echo '  NONE = 0;' >> $@
+	@#cat Protos/mined_words.txt | awk 'BEGIN{n = 1} {print "  " $$1 " = " n ";"; n += 1 }' >> $@
+	@#echo '}' >> $@
+	@cat Protos/mined_words.txt | awk 'BEGIN{n = 1} {print "enum GeneratedSwiftReservedEnum" n " { NONE_" n " = 0; " $$1 " = 1; }"; n += 1 }' >> $@
 
 Protos/generated_swift_names_messages.proto: Protos/mined_words.txt
 	@echo Building $@