Restore res_syntax analysis

Author: cristianoc

Makefile

@@ -42,6 +42,7 @@ test-gentype:
 test-all: test test-gentype
 
 reanalyze:
+	reanalyze.exe -set-exit-code -all-cmt _build/default/res_syntax -suppress res_syntax/testrunner
 	reanalyze.exe -set-exit-code -all-cmt _build/default/jscomp -suppress res_syntax/testrunner -exclude-paths jscomp/super_errors,jscomp/outcome_printer,jscomp/ounit_tests,jscomp/ml,jscomp/js_parser,jscomp/frontend,jscomp/ext,jscomp/depends,jscomp/core,jscomp/common,jscomp/cmij,jscomp/bsb_helper,jscomp/bsb
 
 lib: build node_modules/.bin/semver