pango-devel: switch dep to harfbuzz-devel

* Make 'gobject-introspection' a build-only dep; re-enable license_noconflict.

x11/pango-devel/Portfile

@@ -36,14 +36,14 @@ long_description \
     of internationalized text.
 
 depends_build \
-    port:pkgconfig
+    port:pkgconfig \
+    port:gobject-introspection
 
 depends_lib \
     path:lib/pkgconfig/glib-2.0.pc:glib2 \
     path:lib/pkgconfig/cairo.pc:cairo \
-    port:gobject-introspection \
     port:fribidi \
-    port:harfbuzz
+    port:harfbuzz-devel
 
 configure.args-append   -Dxft=disabled \
                         -Dintrospection=enabled
@@ -55,8 +55,7 @@ compiler.cxx_standard   2011
 configure.cxxflags-append \
                         -std=c++11
 
-# Still applicable, given that we're now depending on this port?
-#license_noconflict      gobject-introspection
+license_noconflict      gobject-introspection
 
 platform macosx {
     variant quartz {