Replace "jet" package name with "kotlin" in testData

idea/testData/resolve/references/forLoopIn/inBuiltIns/extension.kt

@@ -3,6 +3,6 @@ fun main(it: Iterator<Any>) {
 }
 
 // MULTIRESOLVE
-// REF: (for jet.Iterator<T> in jet).iterator()
-// REF: (in jet.Iterator).hasNext()
-// REF: (in jet.Iterator).next()
+// REF: (for kotlin.Iterator<T> in kotlin).iterator()
+// REF: (in kotlin.Iterator).hasNext()
+// REF: (in kotlin.Iterator).next()

idea/testData/resolve/references/forLoopIn/inBuiltIns/member.kt

@@ -3,6 +3,6 @@ fun main() {
 }
 
 // MULTIRESOLVE
-// REF: (in jet.IntIterator).next()
-// REF: (in jet.IntRange).iterator()
-// REF: (in jet.Iterator).hasNext()
+// REF: (in kotlin.IntIterator).next()
+// REF: (in kotlin.IntRange).iterator()
+// REF: (in kotlin.Iterator).hasNext()