Query methods in api.Symbols for Java flags

Adds query methods to the public reflection API for querying the
JAVA_ENUM and JAVA_ANNOTATION flags.

Didn't include JAVA_DEFAULTMETHOD because it does not correspond
to a real java classfile flag (just a non-abstract method in an
interface), and we want to clean the usage of this flag before adding
it to a public API.

The flags themselfs are not added to the reflection API. A comment in
api/FlagSets.scala says:

    Q: I have a pretty flag. Can I put it here?
    A: Only if there's a tree that cannot be built without it.
       If you want to put a flag here so that it can be tested
       against, introduce an `isXXX` method in one of the api.Symbols
       classes instead.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/reflect/scala/reflect/api/Symbols.scala b/src/reflect/scala/reflect/api/Symbols.scala
index b7234ba47a..9e9fe5d67b 100644
--- a/src/reflect/scala/reflect/api/Symbols.scala
+++ b/src/reflect/scala/reflect/api/Symbols.scala
@@ -504,6 +504,18 @@ trait Symbols { self: Universe =>
      */
     def isImplicit: Boolean
 
+    /** Does this symbol represent a java enum class or a java enum value?
+      *
+      *  @group Tests
+      */
+    def isJavaEnum: Boolean
+
+    /** Does this symbol represent a java annotation interface?
+      *
+      *  @group Tests
+      */
+    def isJavaAnnotation: Boolean
+
     /******************* helpers *******************/
 
     /** Provides an alternate if symbol is a NoSymbol.