update for decl_minimal change

From-SVN: r110281

gcc/gdbinit.in

@@ -68,7 +68,7 @@ Print the tree-code of the tree node that is $.
 end
 
 define pdn
-output $.decl.name->identifier.id.str
+output $.decl_minimal.name->identifier.id.str
 echo \n
 end
 
@@ -77,7 +77,7 @@ Print the name of the decl-node that is $.
 end
 
 define ptn
-output $.type.name->decl.name->identifier.id.str
+output $.type.name->decl_minimal.name->identifier.id.str
 echo \n
 end