[TEST] Migrate AbstractDiagnosticsWithExplicitApi to new test runners

compiler/testData/diagnostics/tests/testsWithExplicitApi/interfaces.kt

@@ -0,0 +1,35 @@
+// SKIP_TXT
+
+<!NO_EXPLICIT_VISIBILITY_IN_API_MODE!>interface I1<!> {
+    <!NO_EXPLICIT_VISIBILITY_IN_API_MODE!>fun i<!>()
+}
+
+public interface I2 {
+    <!NO_EXPLICIT_VISIBILITY_IN_API_MODE!>fun i<!>()
+}
+
+public interface I3 {
+    public fun i()
+    public val v: Int
+}
+
+public interface I4 {
+    public fun i(): Int
+    public val v: Int
+}
+
+public class Impl: I3 {
+    override fun i() {}
+    override val v: Int
+        get() = 10
+}
+
+public class Impl2: I4 {
+    override fun <!NO_EXPLICIT_RETURN_TYPE_IN_API_MODE!>i<!>() = 10
+    override val <!NO_EXPLICIT_RETURN_TYPE_IN_API_MODE!>v<!> = 10
+}
+
+private class PrivateImpl: I4 {
+    override fun i() = 10
+    override val v = 10
+}