hg: jdk/sandbox: 8193216: Filer should warn if processors redefine symbols from the classpath or sourcepath

[chris.hegarty at oracle.com]

Changeset: 91bd550551e0
Author:    cushon
Date:      2017-12-21 15:58 -0500
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/91bd550551e0

8193216: Filer should warn if processors redefine symbols from the classpath or sourcepath
Reviewed-by: vromero

! src/jdk.compiler/share/classes/com/sun/tools/javac/processing/JavacFiler.java
+ test/langtools/tools/javac/processing/warnings/TypeAlreadyExists/A.java
+ test/langtools/tools/javac/processing/warnings/TypeAlreadyExists/B.java
+ test/langtools/tools/javac/processing/warnings/TypeAlreadyExists/TestProcTypeAlreadyExistsWarning.java
+ test/langtools/tools/javac/processing/warnings/TypeAlreadyExists/warn.out