Fix int/EMACS_INT use in keyboard.c.

 keyboard.c <last_point_position, last_non_minibuf_size>: Declare EMACS_INT.
 (echo_truncate, adjust_point_for_property, read_char)
 (gen_help_event, make_lispy_event, modify_event_symbol)
 (Fexecute_extended_command, stuff_buffered_input): Use EMACS_INT
 for buffer positions and string length.
 keyboard.h (gen_help_event): Adjust prototype.
 termhooks.h <struct input_event>: Make `code' member EMACS_INT.
 commands.h <last_point_position>: Declare EMACS_INT.
 xdisp.c <help_echo_pos>: Define as EMACS_INT.
 (truncate_echo_area): Accept EMACS_INT argument.
 dispextern.h <help_echo_pos>: Declare EMACS_INT.
 lisp.h (truncate_echo_area): Adjust prototype.
 composite.c (composition_adjust_point): Return EMACS_INT.
 composite.h (composition_adjust_point): Adjust prototype.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/termhooks.h b/src/termhooks.h
index 7762dd15efe..b16c36f9551 100644
--- a/src/termhooks.h
+++ b/src/termhooks.h
@@ -228,9 +228,11 @@ struct input_event
   /* For an ASCII_KEYSTROKE_EVENT and MULTIBYTE_CHAR_KEYSTROKE_EVENT,
      this is the character.
      For a NON_ASCII_KEYSTROKE_EVENT, this is the keysym code.
-     For a mouse event, this is the button number.  */
+     For a mouse event, this is the button number.
+     For a HELP_EVENT, this is the position within the object
+      (stored in ARG below) where the help was found.  */
   /* In WindowsNT, for a mouse wheel event, this is the delta.  */
-  int code;
+  EMACS_INT code;
   enum scroll_bar_part part;
 
   int modifiers;                /* See enum below for interpretation.  */