First yarn build, and then yarn check.

Author: cristianoc

tests/gentype_tests/typescript-react-example/Makefile

@@ -1,8 +1,8 @@
 SHELL = /bin/bash
 
 test:
-	yarn check
 	yarn build
+	yarn check
 	yarn typecheck
 	@git diff --quiet src/ \
 		|| { echo; echo "Please review the Gentype outputs too!"; echo; false; } \