[Tests] Reproduce #KT-79430

Author: cypressious

analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLDiagnosticsFe10TestGenerated.java

@@ -0,0 +1,17 @@
+// RUN_PIPELINE_TILL: BACKEND
+// FIR_IDENTICAL
+// ISSUE: KT-79430
+class Foo {
+    fun bar() {}
+}
+
+interface Extension<T> {
+    fun T.bar()
+}
+
+class FooExtension : Extension<Foo> {
+    override fun Foo.<!EXTENSION_SHADOWED_BY_MEMBER!>bar<!>() {}
+}
+
+/* GENERATED_FIR_TAGS: classDeclaration, funWithExtensionReceiver, functionDeclaration, interfaceDeclaration,
+nullableType, override, typeParameter */