JetDiagnosticsTest migrated to TestGenerator

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

compiler/testData/diagnostics/tests/objects/ObjectsLocal.kt

@@ -0,0 +1,23 @@
+package localObjects
+
+object A {
+    val x : Int = 0
+}
+
+open class Foo {
+    fun foo() : Int = 1
+}
+
+fun test() {
+    A.x
+    val b = object : Foo() {
+    }
+    b.foo()
+
+    object B {
+        fun foo() {}
+    }
+    B.foo()
+}
+
+val bb = <!UNRESOLVED_REFERENCE!>B<!>.foo()