cp-tree.h (finish_enum): Change prototype.

	* cp-tree.h (finish_enum): Change prototype.
	* decl.c (finish_enum): Reorganize.
	* parse.y (structsp): Adjust calls to finish_enum.

[[Split portion of a mixed commit.]]

From-SVN: r41473.2

gcc/testsuite/g++.old-deja/g++.other/enum4.C

+// Origin: Mark Mitchell <mark@codesourcery.com>
+// Special g++ Options: -fshort-enums
+
+enum E { 
+  a = -312
+};
+
+E e = a;
+
+int main () {
+  if ((int) e != -312)
+    return 1;
+}