keywords: shrink struct kwtable

* defs/keywords (struct kwtable): shrink since members do not
  exceed 16bit.  lex_state needs to be int (or enum lex_state_e)
  when EXPR_MAX_STATE reaches it.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62001 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

defs/keywords

@@ -1,5 +1,5 @@
 %{
-struct kwtable {int name, id[2], state;};
+struct kwtable {short name, id[2], state;};
 const struct kwtable *rb_reserved_word(const char *, unsigned int);
 #ifndef RIPPER
 static const struct kwtable *reserved_word(/*!ANSI{*/const char *, unsigned int/*}!ANSI*/);

defs/lex.c.src

@@ -1,5 +1,5 @@
 %{
-struct kwtable {int name, id[2], state;};
+struct kwtable {short name, id[2], state;};
 const struct kwtable *rb_reserved_word(const char *, unsigned int);
 #ifndef RIPPER
 static const struct kwtable *reserved_word(/*!ANSI{*/const char *, unsigned int/*}!ANSI*/);

lex.c.blt

@@ -31,7 +31,7 @@
 #define gperf_offsetof(s, n) (short)offsetof(struct s##_t, s##_str##n)
 #line 1 "defs/keywords"
 
-struct kwtable {int name, id[2], state;};
+struct kwtable {short name, id[2], state;};
 const struct kwtable *rb_reserved_word(const char *, unsigned int);
 #ifndef RIPPER
 static const struct kwtable *reserved_word(/*const char *, unsigned int*/);