hg: jigsaw/jake/langtools: One more place where directory could be created while javac is running and a stale cached isDirectory information could be used.

[jan.lahoda at oracle.com]

Changeset: 8dded0f29712
Author:    jlahoda
Date:      2016-01-20 17:35 +0100
URL:       http://hg.openjdk.java.net/jigsaw/jake/langtools/rev/8dded0f29712

One more place where directory could be created while javac is running and a stale cached isDirectory information could be used.

! src/jdk.compiler/share/classes/com/sun/tools/javac/file/JavacFileManager.java