Diagnostic tests for duplicate JVM signatures

compiler/testData/diagnostics/tests/duplicateJvmSignature/accidentalOverrides/classFunctionOverriddenByProperty.kt

@@ -0,0 +1,8 @@
+open class B {
+    fun getX() = 1
+}
+
+class C : B() {
+    val x: Int
+        <!CONFLICTING_PLATFORM_DECLARATIONS!>get() = 1<!>
+}

compiler/testData/diagnostics/tests/duplicateJvmSignature/accidentalOverrides/classPropertyOverriddenByFunction.kt

@@ -0,0 +1,8 @@
+open class B {
+    val x: Int
+        get() = 1
+}
+
+class C : B() {
+    <!CONFLICTING_PLATFORM_DECLARATIONS!>fun getX() = 1<!>
+}

compiler/testData/diagnostics/tests/duplicateJvmSignature/accidentalOverrides/traitFunctionOverriddenByProperty.kt

@@ -0,0 +1,8 @@
+trait T {
+    fun getX() = 1
+}
+
+class C : T {
+    val x: Int
+        <!CONFLICTING_PLATFORM_DECLARATIONS!>get() = 1<!>
+}

compiler/testData/diagnostics/tests/duplicateJvmSignature/accidentalOverrides/traitPropertyOverriddenByFunction.kt

@@ -0,0 +1,8 @@
+trait T {
+    val x: Int
+        get() = 1
+}
+
+class C : T {
+    <!CONFLICTING_PLATFORM_DECLARATIONS!>fun getX() = 1<!>
+}