Bug 469049 – Fix all compiler warnings

Bug 469049 – Fix all compiler warnings

2008-12-25  Behdad Esfahbod  <behdad@gnome.org>

        Bug 469049 – Fix all compiler warnings

        * pango-view/viewer-pangocairo.c (render_callback):
        * pango/fonts.c (append_field), (pango_font_description_to_string):
        * pango/opentype/harfbuzz-dump.c:
        * pango/pango-bidi-type.c (pango_log2vis_get_embedding_levels):
        * pango/pango-coverage.c (pango_coverage_set):
        * pango/pango-markup.c (span_parse_func):
        * pango/pango-renderer.c
        (pango_renderer_default_draw_error_underline):
        * pango/pango-utils.c (pango_scan_string):
        * pango/pangocairo-render.c (pango_cairo_renderer_draw_trapezoid),
        (draw_error_underline), (pango_cairo_renderer_class_init):
        Fix all the remaining warnings.