[PL][tests] Keep PL test data under "testData/klib/" dir

compiler/testData/klib/partial-linkage/severalInheritedImplementations/lib1/l1.kt.0

@@ -0,0 +1,25 @@
+package lib1
+
+interface I {
+}
+
+interface J {
+}
+
+interface Default {
+    fun foo(): String = "Default v1"
+    val bar: String get() = "Default v1"
+}
+
+interface RemovedDefault {
+    fun foo(): String = "RemovedDefault v1"
+    val bar: String get() = "RemovedDefault v1"
+}
+
+open class Unrelated
+
+abstract class AbstractUnrelated
+
+open class WithFakeOverride : I
+
+open class WithRealOverride : I

compiler/testData/klib/partial-linkage/severalInheritedImplementations/lib1/l1.kt.1

@@ -0,0 +1,38 @@
+package lib1
+
+interface I {
+    fun foo(): String = "I v2"
+    val bar: String get() = "I v2"
+}
+
+interface J {
+    fun foo(): String = "J v2"
+    val bar: String get() = "J v2"
+}
+
+interface Default {
+    fun foo(): String = "Default v2"
+    val bar: String get() = "Default v2"
+}
+
+interface RemovedDefault {
+    fun foo(): String
+    val bar: String
+}
+
+open class Unrelated {
+    fun foo(): String = "Unrelated v2"
+    val bar: String = "Unrelated v2"
+}
+
+abstract class AbstractUnrelated {
+    abstract fun foo(): String
+    abstract val bar: String
+}
+
+open class WithFakeOverride : I
+
+open class WithRealOverride : I {
+    override fun foo() = "WithRealOverride v2"
+    override val bar = "WithRealOverride v2"
+}

compiler/testData/klib/partial-linkage/severalInheritedImplementations/lib1/module.info

@@ -0,0 +1,8 @@
+STEP 0:
+    dependencies: stdlib
+    modifications:
+        U : l1.kt.0 -> l1.kt
+STEP 1:
+    dependencies: stdlib
+    modifications:
+        U : l1.kt.1 -> l1.kt