decl.c (grokdeclarator): Don't override TYPE_NAME of an anonymous class with a typedef if...

        * decl.c (grokdeclarator): Don't override TYPE_NAME of an
        anonymous class with a typedef if there are attributes.

[[Split portion of a mixed commit.]]

From-SVN: r52955.2

gcc/testsuite/g++.dg/debug/typedef1.C

+// PR debug/6436
+// { dg-do compile }
+
+typedef struct 
+{
+  unsigned int a0, a1;
+} A __attribute__ ((aligned(8)));
+
+typedef struct
+{
+  A a;
+} B;
+
+struct C
+{
+  B *bp;
+};