sys-devel/clang: Modernize

Signed-off-by: Michał Górny <mgorny@gentoo.org>

sys-devel/clang/clang-15.0.0.9999.ebuild

@@ -1,7 +1,7 @@
 # Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+EAPI=8
 
 PYTHON_COMPAT=( python3_{8..10} )
 inherit cmake llvm llvm.org multilib multilib-minimal \
@@ -16,26 +16,32 @@ HOMEPAGE="https://llvm.org/"
 LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
 SLOT="$(ver_cut 1)"
 KEYWORDS=""
-IUSE="debug default-compiler-rt default-libcxx default-lld
-	doc llvm-libunwind +pie +static-analyzer test xml"
+IUSE="
+	debug default-compiler-rt default-libcxx default-lld doc
+	llvm-libunwind +pie +static-analyzer test xml
+"
 REQUIRED_USE="${PYTHON_REQUIRED_USE}"
 RESTRICT="!test? ( test )"
 
-RDEPEND="
+DEPEND="
 	~sys-devel/llvm-${PV}:${SLOT}=[debug=,${MULTILIB_USEDEP}]
 	static-analyzer? ( dev-lang/perl:* )
 	xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
-	${PYTHON_DEPS}"
+"
 
-DEPEND="${RDEPEND}"
+RDEPEND="
+	${PYTHON_DEPS}
+	${DEPEND}
+"
 BDEPEND="
+	${PYTHON_DEPS}
 	>=dev-util/cmake-3.16
 	doc? ( $(python_gen_cond_dep '
 		dev-python/recommonmark[${PYTHON_USEDEP}]
 		dev-python/sphinx[${PYTHON_USEDEP}]
 	') )
 	xml? ( virtual/pkgconfig )
-	${PYTHON_DEPS}"
+"
 PDEPEND="
 	sys-devel/clang-common
 	~sys-devel/clang-runtime-${PV}
@@ -45,7 +51,8 @@ PDEPEND="
 		!llvm-libunwind? ( sys-libs/libunwind )
 	)
 	default-libcxx? ( >=sys-libs/libcxx-${PV} )
-	default-lld? ( sys-devel/lld )"
+	default-lld? ( sys-devel/lld )
+"
 
 LLVM_COMPONENTS=(
 	clang clang-tools-extra cmake