* gdbint.texinfo (everywhere): Use braces {} in @deftypeXX type
field throughout to handle types with spaces in them. Fix typos
found by aspell.
(Summary, Requirements, Contributors): New first chapter,
"Summary" added, old Requirements section moved there, and new
section, "Contributors" added.
(Initializing a New Architecture, Register Representation)
(Frame Interpretation, Inferior Call Setup, Adding a New Target)
(Porting gdb): These sections extended and updated.
(Compiler Characteristics): This section (empty) deleted.
(Defining Other Architecture Features): This section renamed and
duplicate material removed from (formerly "Target Conditionals").
Use braces {} in @deftypeXX type field throughout to handle types
with spaces in them. Typos found by aspell fixed.
* stack_frame.svg: New file, source of image for gdbint.texinfo.
* stack_frame.pdf: Version of image for PDF output.
* stack_frame.png: Version of image for HTML output and for Emacs.
* stack_frame.txt: Version of image for Info output.