Diagnostic tests for duplicate JVM signatures

compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/componentInheritedFromTrait.kt

@@ -0,0 +1,5 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+data class C(val c: Int) {
+    <!CONFLICTING_PLATFORM_DECLARATIONS!>fun `copy$default`(c: C, x: Int, m: Int) = 1<!>
+}

compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/defaults.kt

@@ -0,0 +1,6 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+<!CONFLICTING_PLATFORM_DECLARATIONS!>class C {
+    <!CONFLICTING_PLATFORM_DECLARATIONS!>fun `a$default`(c: C, x: Int, m: Int) {}<!>
+    fun a(x: Int = 1) {}
+}<!>

compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/delegationBy.kt

@@ -0,0 +1,5 @@
+trait Foo
+
+class Bar(f: Foo) : Foo by f {
+    <!CONFLICTING_PLATFORM_DECLARATIONS!>val `$delegate_0`: Foo? = null<!>
+}

compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/innerClassField.kt

@@ -0,0 +1,7 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+class C {
+    <!CONFLICTING_PLATFORM_DECLARATIONS!>inner class D {
+        <!CONFLICTING_PLATFORM_DECLARATIONS!>val `this$0`: C? = null<!>
+    }<!>
+}