traditional.c (lex_identifier): Use CPP_HASHNODE.

	* traditional.c (lex_identifier): Use CPP_HASHNODE.
	* lex.c (lex_identifier): Use CPP_HASHNODE.
	* include/line-map.h (LINEMAP_POSITION_FOR_COLUMN): Wrap in
	do-while.
	* identifiers.c (alloc_node): Change return type.
	(_cpp_init_hashtable): Don't cast 'alloc_node'.
	(proxy_assertion_broken): New declaration.
	(cpp_forall_identifiers): Move comment.
	* line-map.c (linemap_add): Comment fix.
	(linemap_line_start): Indentation fix.

From-SVN: r132467
diff --git a/libcpp/lex.c b/libcpp/lex.c
index ef59f900..2eaf610 100644
--- a/libcpp/lex.c
+++ b/libcpp/lex.c
@@ -1,5 +1,5 @@
 /* CPP Library - lexical analysis.
-   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
    Contributed by Per Bothner, 1994-95.
    Based on CCCP program by Paul Rubin, June 1986
    Adapted to ANSI C, Richard Stallman, Jan 1987
@@ -538,8 +538,8 @@
       len = cur - base;
       hash = HT_HASHFINISH (hash, len);
 
-      result = (cpp_hashnode *)
-	ht_lookup_with_hash (pfile->hash_table, base, len, hash, HT_ALLOC);
+      result = CPP_HASHNODE (ht_lookup_with_hash (pfile->hash_table,
+						  base, len, hash, HT_ALLOC));
     }
 
   /* Rarely, identifiers require diagnostics when lexed.  */