[Test] Add regression tests for issues which are fixed in K2

Related issues:
KT-10879, KT-18055, KT-20617, KT-23873
KT-25668, KT-31191, KT-33108, KT-41013
KT-51827, KT-53886, KT-56624, KT-58447
KT-58458, KT-58751, KT-58814, KT-60597
KT-62806, KT-63258, KT-63444, KT-65101
KT-65408, KT-65844, KT-66186

^KT-65926 Fixed

compiler/testData/diagnostics/tests/explicitDefinitelyNotNullableViaIntersection/starProjection.fir.kt

@@ -0,0 +1,8 @@
+// ISSUE: KT-58751
+class Result<out T>
+
+interface Convert<T> {
+    fun convert(str: String): Result<T & Any>
+}
+
+fun Convert<*>.cnv(value: String): Result<Any> = convert(value)

compiler/testData/diagnostics/tests/explicitDefinitelyNotNullableViaIntersection/starProjection.kt

@@ -0,0 +1,8 @@
+// ISSUE: KT-58751
+class Result<out T>
+
+interface Convert<T> {
+    fun convert(str: String): Result<T & Any>
+}
+
+fun Convert<*>.cnv(value: String): Result<Any> = <!TYPE_MISMATCH!>convert(value)<!>