8357654: [BACKOUT] JDK-8343580: Type error with inner classes of generic classes in functions generic by outer

Reviewed-by: mcimadamore, liach, vromero

Author: biboudis

src/jdk.compiler/share/classes/com/sun/tools/javac/code/Type.java

@@ -1155,11 +1155,7 @@ public void setEnclosingType(Type outer) {
 
         public List<Type> allparams() {
             if (allparams_field == null) {
-                Type enclosingType = getEnclosingType();
-                while (enclosingType.hasTag(TYPEVAR)) {
-                    enclosingType = enclosingType.getUpperBound();
-                }
-                allparams_field = getTypeArguments().prependList(enclosingType.allparams());
+                allparams_field = getTypeArguments().prependList(getEnclosingType().allparams());
             }
             return allparams_field;
         }