[pph] Fix pph_read_tree_header. (issue 5050045)

[dnovillo@google.com]

http://codereview.appspot.com/5050045/diff/1/gcc/cp/pph-streamer-in.c
File gcc/cp/pph-streamer-in.c (right):

http://codereview.appspot.com/5050045/diff/1/gcc/cp/pph-streamer-in.c#newcode2024
gcc/cp/pph-streamer-in.c:2024: /* Read the language-independent
bitfields for expr.  */
s/expr/EXPR/

http://codereview.appspot.com/5050045/diff/1/gcc/cp/pph.c
File gcc/cp/pph.c (right):

http://codereview.appspot.com/5050045/diff/1/gcc/cp/pph.c#newcode50
gcc/cp/pph.c:50: gcc_assert (code <= TEMPLATE_INFO);
   48 pph_tree_code_text (enum tree_code code)
   49 {
   50   gcc_assert (code <= TEMPLATE_INFO);

gcc_assert (code < MAX_TREE_CODES);

http://codereview.appspot.com/5050045/