Report JVM signature clashes from JVM_IR

Also:

* Do not rename public ABI fields
This includes backing fields for const, lateinit, @JvmField properties,
and instance fields for objects.

* FAKE_OVERRIDE declarations for static members of parent Java classes
Required to report cases when a Kotlin function accidentally overrides
Java class member.

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/defaultVsNonDefault_ir.kt

@@ -0,0 +1,11 @@
+// TARGET_BACKEND: JVM_IR
+interface Base1 {
+    fun getX(): Int
+}
+
+interface Base2 {
+    val x: Int
+        get() = 1
+}
+
+interface <!CONFLICTING_INHERITED_JVM_DECLARATIONS!>Test<!> : Base1, Base2

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/defaultVsNonDefault_ir.txt

@@ -0,0 +1,23 @@
+package
+
+public interface Base1 {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public abstract fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface Base2 {
+    public open val x: kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface Test : Base1, Base2 {
+    public open override /*1*/ /*fake_override*/ val x: kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public abstract override /*1*/ /*fake_override*/ fun getX(): kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/defaultVsNonDefault_old.kt

@@ -0,0 +1,11 @@
+// TARGET_BACKEND: JVM_OLD
+interface Base1 {
+    fun getX(): Int
+}
+
+interface Base2 {
+    val x: Int
+        get() = 1
+}
+
+interface <!CONFLICTING_INHERITED_JVM_DECLARATIONS, CONFLICTING_INHERITED_JVM_DECLARATIONS!>Test<!> : Base1, Base2

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/defaultVsNonDefault_old.txt

@@ -0,0 +1,23 @@
+package
+
+public interface Base1 {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public abstract fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface Base2 {
+    public open val x: kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface Test : Base1, Base2 {
+    public open override /*1*/ /*fake_override*/ val x: kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public abstract override /*1*/ /*fake_override*/ fun getX(): kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/oneTrait_ir.kt

@@ -0,0 +1,8 @@
+// TARGET_BACKEND: JVM_IR
+interface T {
+    fun getX() = 1
+}
+
+class C : T {
+    <!ACCIDENTAL_OVERRIDE!>val x<!> = 1
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/oneTrait_ir.txt

@@ -0,0 +1,17 @@
+package
+
+public final class C : T {
+    public constructor C()
+    public final val x: kotlin.Int = 1
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface T {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/oneTrait_old.kt

@@ -0,0 +1,9 @@
+// TARGET_BACKEND: JVM_OLD
+
+interface T {
+    fun getX() = 1
+}
+
+class <!CONFLICTING_JVM_DECLARATIONS!>C<!> : T {
+    <!ACCIDENTAL_OVERRIDE, CONFLICTING_JVM_DECLARATIONS!>val x<!> = 1
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/oneTrait_old.txt

@@ -0,0 +1,17 @@
+package
+
+public final class C : T {
+    public constructor C()
+    public final val x: kotlin.Int = 1
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface T {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/traitFunctionOverriddenByPropertyInTrait_ir.kt

@@ -0,0 +1,10 @@
+// TARGET_BACKEND: JVM_IR
+
+interface T {
+    fun getX() = 1
+}
+
+interface C : T {
+    val x: Int
+        <!ACCIDENTAL_OVERRIDE!>get()<!> = 1
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/traitFunctionOverriddenByPropertyInTrait_ir.txt

@@ -0,0 +1,16 @@
+package
+
+public interface C : T {
+    public open val x: kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface T {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/traitFunctionOverriddenByPropertyInTrait_old.kt

@@ -0,0 +1,10 @@
+// TARGET_BACKEND: JVM_OLD
+
+interface T {
+    fun getX() = 1
+}
+
+interface <!CONFLICTING_JVM_DECLARATIONS!>C<!> : T {
+    val x: Int
+        <!ACCIDENTAL_OVERRIDE, ACCIDENTAL_OVERRIDE, CONFLICTING_JVM_DECLARATIONS!>get()<!> = 1
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/traitFunctionOverriddenByPropertyInTrait_old.txt

@@ -0,0 +1,16 @@
+package
+
+public interface C : T {
+    public open val x: kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface T {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/traitPropertyOverriddenByFunctionInTrait_ir.kt

@@ -0,0 +1,10 @@
+// TARGET_BACKEND: JVM_IR
+
+interface T {
+    val x: Int
+        get() = 1
+}
+
+interface C : T {
+    <!ACCIDENTAL_OVERRIDE!>fun getX()<!> = 1
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/traitPropertyOverriddenByFunctionInTrait_ir.txt

@@ -0,0 +1,16 @@
+package
+
+public interface C : T {
+    public open override /*1*/ /*fake_override*/ val x: kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface T {
+    public open val x: kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/traitPropertyOverriddenByFunctionInTrait_old.kt

@@ -0,0 +1,10 @@
+// TARGET_BACKEND: JVM_OLD
+
+interface T {
+    val x: Int
+        get() = 1
+}
+
+interface <!CONFLICTING_JVM_DECLARATIONS!>C<!> : T {
+    <!ACCIDENTAL_OVERRIDE, ACCIDENTAL_OVERRIDE, CONFLICTING_JVM_DECLARATIONS!>fun getX()<!> = 1
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/traitPropertyOverriddenByFunctionInTrait_old.txt

@@ -0,0 +1,16 @@
+package
+
+public interface C : T {
+    public open override /*1*/ /*fake_override*/ val x: kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface T {
+    public open val x: kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/twoTraits_ir.kt

@@ -0,0 +1,13 @@
+// TARGET_BACKEND: JVM_IR
+
+interface T1 {
+    fun getX() = 1
+}
+
+interface T2 {
+    val x: Int
+        get() = 1
+}
+
+class <!CONFLICTING_INHERITED_JVM_DECLARATIONS!>C<!> : T1, T2 {
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/twoTraits_ir.txt

@@ -0,0 +1,24 @@
+package
+
+public final class C : T1, T2 {
+    public constructor C()
+    public open override /*1*/ /*fake_override*/ val x: kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun getX(): kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface T1 {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface T2 {
+    public open val x: kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/twoTraits_old.kt

@@ -0,0 +1,13 @@
+// TARGET_BACKEND: JVM_OLD
+
+interface T1 {
+    fun getX() = 1
+}
+
+interface T2 {
+    val x: Int
+        get() = 1
+}
+
+class <!CONFLICTING_INHERITED_JVM_DECLARATIONS, CONFLICTING_JVM_DECLARATIONS!>C<!> : T1, T2 {
+}

compiler/testData/diagnostics/testsWithJvmBackend/duplicateJvmSignature/traitImpl/twoTraits_old.txt

@@ -0,0 +1,24 @@
+package
+
+public final class C : T1, T2 {
+    public constructor C()
+    public open override /*1*/ /*fake_override*/ val x: kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun getX(): kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*2*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface T1 {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun getX(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public interface T2 {
+    public open val x: kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}