Add test for lambda class name clash (fixed in 610c9b52)

backend.native/tests/build.gradle

@@ -1958,6 +1958,11 @@ task lambda13(type: RunKonanTest) {
     source = "codegen/lambda/lambda13.kt"
 }
 
+task lambda14(type: RunStandaloneKonanTest) {
+    source = "codegen/lambda/lambda14.kt"
+    flags = ['-tr']
+}
+
 task objectExpression1(type: RunKonanTest) {
     goldValue = "aabb\n"
     source = "codegen/objectExpression/expr1.kt"

backend.native/tests/codegen/lambda/lambda14.kt

@@ -0,0 +1,18 @@
+// FILE: 1.kt
+
+package codegen.lambda.lambda14
+
+import kotlin.test.*
+
+@Test fun runTest() {
+    assertEquals(foo()(), "foo1")
+    assertEquals(foo(0)(), "foo2")
+}
+
+fun foo() = { "foo1" }
+
+// FILE: 2.kt
+
+package codegen.lambda.lambda14
+
+fun foo(ignored: Int) = { "foo2" }