JVM_IR KT-47326 downcast field receiver on JvmField lowering

compiler/testData/codegen/box/jvmField/kt47328.kt

@@ -0,0 +1,17 @@
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+
+interface A { val x: Int }
+
+class B(@JvmField override val x: Int): A
+
+class C<D: A>(@JvmField val d: D)
+
+class E(c: C<B>) { val ax = c.d.x }
+
+fun box(): String {
+    val e = E(C(B(42)))
+    if (e.ax != 42)
+        return "Failed: ${e.ax}"
+    return "OK"
+}

compiler/testData/codegen/box/jvmField/kt47328_inherited.kt

@@ -0,0 +1,23 @@
+// TARGET_BACKEND: JVM
+// IGNORE_BACKEND_FIR: JVM_IR
+//  ^ generates 'GETFIELD B.x : I' instead of 'GETFIELD BB.x : I'
+// WITH_RUNTIME
+
+interface A { val x: Int }
+
+open class B(@JvmField override val x: Int): A
+
+class BB(x: Int) : B(x)
+
+class C<D: A>(@JvmField val d: D)
+
+class E(c: C<BB>) { val ax = c.d.x }
+// CHECK_BYTECODE_TEXT
+// 1 GETFIELD BB\.x \: I
+
+fun box(): String {
+    val e = E(C(BB(42)))
+    if (e.ax != 42)
+        return "Failed: ${e.ax}"
+    return "OK"
+}

compiler/testData/codegen/box/jvmField/kt47328_super.kt

@@ -0,0 +1,18 @@
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+
+interface A { val x: String }
+
+open class B(@JvmField override val x: String): A
+
+open class BB(x: String) : B(x)
+
+class X(x: String) : A, BB(x) {
+    override val x: String
+        get() = super.x
+}
+
+fun box(): String {
+    val e = X("OK")
+    return e.x
+}

compiler/testData/codegen/box/jvmField/kt47328_var.kt

@@ -0,0 +1,22 @@
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+
+interface A { var x: Int }
+
+class B(@JvmField override var x: Int): A
+
+class C<D: A>(@JvmField val d: D)
+
+class E(c: C<B>) {
+    init {
+        c.d.x = 42
+    }
+    val ax = c.d.x
+}
+
+fun box(): String {
+    val e = E(C(B(1234)))
+    if (e.ax != 42)
+        return "Failed: ${e.ax}"
+    return "OK"
+}

compiler/testData/codegen/box/regressions/kt5445.kt

@@ -1,5 +1,8 @@
 // TARGET_BACKEND: JVM
 
+// IGNORE_BACKEND_FIR: JVM_IR
+//  - FIR2IR should generate call to fake override
+
 // WITH_RUNTIME
 // FILE: 1.kt
 

compiler/testData/codegen/box/regressions/kt5445_2.kt

@@ -1,5 +1,8 @@
 // TARGET_BACKEND: JVM
 
+// IGNORE_BACKEND_FIR: JVM_IR
+//  - FIR2IR should generate call to fake override
+
 // WITH_RUNTIME
 // FILE: 1.kt
 

compiler/testData/codegen/box/syntheticAccessors/jvmField.kt

@@ -1,6 +1,9 @@
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
 
+// IGNORE_BACKEND_FIR: JVM_IR
+//  - FIR2IR should generate call to fake override
+
 // FILE: A.kt
 package a
 import b.*

compiler/testData/codegen/box/syntheticAccessors/protectedMemberReferenceAccessor/kt46597_crossinline_jvmField_property.kt

@@ -1,6 +1,9 @@
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
 
+// IGNORE_BACKEND_FIR: JVM_IR
+//  - FIR2IR should generate call to fake override
+
 // FILE: a.kt
 package a
 

compiler/testData/codegen/box/syntheticAccessors/protectedMemberReferenceAccessor/kt46597_jvmField_property.kt

@@ -1,6 +1,9 @@
 // TARGET_BACKEND: JVM
 // WITH_RUNTIME
 
+// IGNORE_BACKEND_FIR: JVM_IR
+//  - FIR2IR should generate call to fake override
+
 // FILE: a.kt
 package a