JetDiagnosticsTest migrated to TestGenerator

- test data files renamed from *.jet to *.kt

compiler/testData/diagnostics/tests/scopes/kt1579_map_entry.kt

@@ -0,0 +1,20 @@
+//FILE:a.kt
+//+JDK
+package a
+import java.util.Map.*
+
+fun foo(b : Entry<String, String>) = b
+
+//FILE:b.kt
+//+JDK
+package b
+
+import java.util.Map.Entry
+fun bar(b : Entry<String, String>) = b
+
+//FILE:c.kt
+//+JDK
+package c
+
+import java.util.Map
+fun fff(b: Map.Entry<String, String>) = b