dev-perl/JavaScript-SpiderMonkey: Fix '.' in @INC tests bug #617006

- Patch tests
- Rework mozjs patch to apply cleanly against 0.21

Closes: https://bugs.gentoo.org/617006
Package-Manager: Portage-2.3.8, Repoman-2.3.3

dev-perl/JavaScript-SpiderMonkey/JavaScript-SpiderMonkey-0.210.0-r1.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2016 Gentoo Foundation
+# Copyright 1999-2017 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=5
@@ -18,9 +18,9 @@ RDEPEND="dev-perl/Log-Log4perl
 DEPEND="${RDEPEND}
 	dev-perl/ExtUtils-PkgConfig"
 
-src_prepare() {
-	epatch "${FILESDIR}"/mozjs185.patch
-	perl-module_src_prepare
-}
+PATCHES=(
+	"${FILESDIR}/mozjs185.patch"
+	"${FILESDIR}/${P}-no-dot-inc.patch"
+)
 
 SRC_TEST=do