@CompileStatic is not propagated to anonymous class

@groovy.transform.CompileStatic
def method() {
    new Runnable() {
        @Override
        void run() {
            foo // invalid reference
        }
    }
} 

Expected: Error:(6, 13) Groovyc: [Static type checking] - The variable [foo] is undeclared.
Actual: no error is reported.

Note that annotating run method works properly, i.e. the error is reported.