JetDiagnosticsTest migrated to TestGenerator

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

compiler/testData/diagnostics/tests/declarationChecks/kt1141.kt

@@ -0,0 +1,21 @@
+//KT-1141 No check that object in 'object expression' implements all abstract members of supertype
+
+package kt1141
+
+public trait SomeTrait {
+    fun foo()
+}
+
+fun foo() {
+    val x = <!ABSTRACT_MEMBER_NOT_IMPLEMENTED!>object<!> : SomeTrait {
+    }
+    x.foo()
+}
+
+object <!ABSTRACT_MEMBER_NOT_IMPLEMENTED!>Rr<!> : SomeTrait {}
+
+class <!ABSTRACT_MEMBER_NOT_IMPLEMENTED!>C<!> : SomeTrait {}
+
+fun foo2() {
+    val <!UNUSED_VARIABLE!>r<!> = <!ABSTRACT_MEMBER_NOT_IMPLEMENTED!>object<!> : Runnable {} //no error
+}