Fixed test case for Issue #1263.

test/val/bug1263.c

@@ -0,0 +1,22 @@
+/* bug #1263 - erroneous error for K & R function declaration */
+
+enum E { I = 0 };
+
+extern int f();
+int f(e)
+  enum E e;
+{
+  return e;
+}
+
+extern int g(int);
+int g(e)
+  enum E e;
+{
+  return e;
+}
+
+int main(void)
+{
+    return f(I) + g(I);
+}