integrated diamond test into test-suite (#133)

Author: holgerbrandl

test/resources/diamond.kts

@@ -0,0 +1,7 @@
+#!/usr/bin/env kscript
+
+
+@file:Include("include_3.kt")
+@file:Include("include_3.kt")
+
+include_3()

test/resources/includes/diamond.kts

@@ -246,6 +246,9 @@ export -f kscript_nocall
 ## temp projects with include symlinks
 assert_raises 'tmpDir=$(kscript_nocall --idea test/resources/includes/include_variations.kts | cut -f2 -d" "); cd $tmpDir && gradle build' 0
 
+## support diamond-shaped include schemes (see #133)
+assert_raises 'tmpDir=$(kscript_nocall --idea test/resources/includes/diamond.kts | cut -f2 -d" "); cd $tmpDir && gradle build' 0
+
 ## todo reenable interactive mode tests using kscript_nocall
 
 assert_end misc