lang/vala: update to 0.56.16

Changelog: https://gitlab.gnome.org/GNOME/vala/-/blob/0.56.16/NEWS

Notably, pragmas have been added to ignore incompatible {,function}
pointer type warnings/errors, so dispense of our local workaround.

Mk/Uses/vala.mk

@@ -8,7 +8,7 @@
 .if ! defined(_INCLUDE_USES_VALA_MK)
 _INCLUDE_USES_VALA_MK=	yes
 
-_VALA_VERSION=		0.56.8
+_VALA_VERSION=		0.56.16
 _VALA_LIB_VERSION=	${_VALA_VERSION:R}
 _VALA_LIBRARY=		libvala-${_VALA_LIB_VERSION}.so
 _VALA_BINARY=		valac
@@ -23,10 +23,4 @@ BUILD_DEPENDS+=		${_VALA_BINARY}:${_VALA_PORT}
 .    endif
 .  endif
 
-# remove after https://gitlab.gnome.org/GNOME/vala/-/issues/1408 is fixed
-.include "${USESDIR}/compiler.mk"
-.  if ${CHOSEN_COMPILER_TYPE} == "clang"
-CFLAGS+=	-Wno-error=incompatible-function-pointer-types
-.  endif
-
 .endif

lang/vala/Makefile

@@ -1,6 +1,5 @@
 PORTNAME=	vala
 DISTVERSION=	${_VALA_VERSION}
-PORTREVISION=	1
 PORTEPOCH=	1
 CATEGORIES=	lang gnome
 MASTER_SITES=	GNOME
@@ -16,7 +15,7 @@ PORTSCOUT=	limitw:1,even
 USES=		bison cpe gettext-runtime gmake gnome libtool \
 		localbase pathfix pkgconfig tar:xz\
 		vala:no_depend
-USE_GNOME=	glib20 gnomeprefix libxslt:build
+USE_GNOME=	glib20 gnomeprefix introspection:build libxslt:build
 CPE_VENDOR=	gnome
 GNU_CONFIGURE=	yes
 GNU_CONFIGURE_MANPREFIX=${PREFIX}/share

lang/vala/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1687575805
-SHA256 (vala-0.56.8.tar.xz) = 93f81dcfc6a93b77baa271d65e6be981ee3238ad451ef380af118e295d904bde
-SIZE (vala-0.56.8.tar.xz) = 3994328
+TIMESTAMP = 1710571274
+SHA256 (vala-0.56.16.tar.xz) = 05487b5600f5d2f09e66a753cccd8f39c1bff9f148aea1b7774d505b9c8bca9b
+SIZE (vala-0.56.16.tar.xz) = 4013716