test: mark a job incompatible with Swift parser

Due to the fact that we do not statically link the toolchain, we cannot
currently support this test.  Mark it as unavailable currently with the
early syntax parser enabled.

Author: compnerd

test/Driver/windows-link-job.swift

@@ -6,5 +6,6 @@
 // swift-frontend cannot be copied to another location with bootstrapping because
 // it will not find the libswiftCore library with its relative RPATH.
 // UNSUPPORTED: swift_in_compiler
+// UNSUPPORTED: swift_swift_parser
 
 // CHECK: {{^}}clang