girparser: Use INTEGER_ALIAS to reduce repetition

As a special case, keep the historical behaviour of treating gchar
as being signed, both on platforms where it is genuinely signed (for
example x86 Linux) and where it is unsigned (for example ARM, s390x
and PowerPC Linux). Changing gchar to use INTEGER_ALIAS would have a
regression risk, so if we want to do that, it should be as a separate
change.

No functional change intended.

Signed-off-by: Simon McVittie <smcv@debian.org>

girepository/girparser.c

@@ -462,19 +462,23 @@ G_STATIC_ASSERT (signedness (int) == 1);
 G_STATIC_ASSERT (signedness (unsigned int) == 0);
 
 static IntegerAliasInfo integer_aliases[] = {
-  { "gchar",    sizeof (gchar),   1 },
-  { "guchar",   sizeof (guchar),  0 },
-  { "gshort",   sizeof (gshort),  1 },
-  { "gushort",  sizeof (gushort), 0 },
-  { "gint",     sizeof (gint),    1 },
-  { "guint",    sizeof (guint),   0 },
-  { "glong",    sizeof (glong),   1 },
-  { "gulong",   sizeof (gulong),  0 },
-  { "gssize",   sizeof (gssize),  1 },
-  { "gsize",    sizeof (gsize),   0 },
-  { "gintptr",  sizeof (gintptr),      1 },
-  { "guintptr", sizeof (guintptr),     0 },
+  /* It is platform-dependent whether gchar is signed or unsigned, but
+   * GObject-Introspection has traditionally treated it as signed,
+   * so continue to hard-code that instead of using INTEGER_ALIAS */
+  { "gchar", sizeof (gchar), 1 },
+
 #define INTEGER_ALIAS(T) { #T, sizeof (T), signedness (T) }
+  INTEGER_ALIAS (guchar),
+  INTEGER_ALIAS (gshort),
+  INTEGER_ALIAS (gushort),
+  INTEGER_ALIAS (gint),
+  INTEGER_ALIAS (guint),
+  INTEGER_ALIAS (glong),
+  INTEGER_ALIAS (gulong),
+  INTEGER_ALIAS (gssize),
+  INTEGER_ALIAS (gsize),
+  INTEGER_ALIAS (gintptr),
+  INTEGER_ALIAS (guintptr),
   INTEGER_ALIAS (off_t),
   INTEGER_ALIAS (time_t),
 #ifdef G_OS_UNIX