JetDiagnosticsTest migrated to TestGenerator

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

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

@@ -0,0 +1,31 @@
+package i
+
+import java.util.List
+
+val <T> List<T>.length = <!UNRESOLVED_REFERENCE!>size<!>()
+
+val <T> List<T>.length1 : Int get() = size()
+
+val String.bd = <!NO_THIS!>this<!> + "!"
+
+val String.bd1 : String get() = this + "!"
+
+
+class A {
+    val ii : Int = 1
+}
+
+val A.foo = <!UNRESOLVED_REFERENCE!>ii<!>
+
+val A.foo1 : Int get() = ii
+
+
+class C {
+    class D {}
+}
+
+val C.foo : C.D = <!UNRESOLVED_REFERENCE!>D<!>()
+
+val C.bar : C.D = C().D()
+
+val C.foo1 : C.D get() = D()