[SPARK-2497] Included checks for module symbols too.

Author: Prashant Sharma <prashant.s@imaginea.com>

Closes #1463 from ScrapCodes/SPARK-2497/mima-exclude-all and squashes the following commits:

72077b1 [Prashant Sharma] Check separately for module symbols.
cd96192 [Prashant Sharma] SPARK-2497 Produce "member excludes" irrespective of the fact that class itself is excluded or not.

tools/src/main/scala/org/apache/spark/tools/GenerateMIMAIgnore.scala

@@ -68,12 +68,11 @@ object GenerateMIMAIgnore {
     for (className <- classes) {
       try {
         val classSymbol = mirror.classSymbol(Class.forName(className, false, classLoader))
-        val moduleSymbol = mirror.staticModule(className) // TODO: see if it is necessary.
+        val moduleSymbol = mirror.staticModule(className)
         val directlyPrivateSpark =
           isPackagePrivate(classSymbol) || isPackagePrivateModule(moduleSymbol)
-        val developerApi = isDeveloperApi(classSymbol)
-        val experimental = isExperimental(classSymbol)
-
+        val developerApi = isDeveloperApi(classSymbol) || isDeveloperApi(moduleSymbol)
+        val experimental = isExperimental(classSymbol) || isExperimental(moduleSymbol)
         /* Inner classes defined within a private[spark] class or object are effectively
          invisible, so we account for them as package private. */
         lazy val indirectlyPrivateSpark = {
@@ -87,10 +86,9 @@ object GenerateMIMAIgnore {
         }
         if (directlyPrivateSpark || indirectlyPrivateSpark || developerApi || experimental) {
           ignoredClasses += className
-        } else {
-          // check if this class has package-private/annotated members.
-          ignoredMembers ++= getAnnotatedOrPackagePrivateMembers(classSymbol)
         }
+        // check if this class has package-private/annotated members.
+        ignoredMembers ++= getAnnotatedOrPackagePrivateMembers(classSymbol)
 
       } catch {
         case _: Throwable => println("Error instrumenting class:" + className)
@@ -115,8 +113,9 @@ object GenerateMIMAIgnore {
   }
 
   private def getAnnotatedOrPackagePrivateMembers(classSymbol: unv.ClassSymbol) = {
-    classSymbol.typeSignature.members
-      .filter(x => isPackagePrivate(x) || isDeveloperApi(x) || isExperimental(x)).map(_.fullName) ++
+    classSymbol.typeSignature.members.filterNot(x =>
+      x.fullName.startsWith("java") || x.fullName.startsWith("scala"))
+        .filter(x => isPackagePrivate(x) || isDeveloperApi(x) || isExperimental(x)).map(_.fullName) ++
       getInnerFunctions(classSymbol)
   }
 
@@ -137,8 +136,7 @@ object GenerateMIMAIgnore {
     name.endsWith("$class") ||
     name.contains("$sp") ||
     name.contains("hive") ||
-    name.contains("Hive") ||
-    name.contains("repl")
+    name.contains("Hive")
   }
 
   /**