[IR] Support MFVC properties without backing fields

Signed-off-by: Evgeniy.Zhelenskiy <Evgeniy.Zhelenskiy@jetbrains.com>

#KT-1179

compiler/testData/codegen/box/valueClasses/classFlattening.kt

@@ -60,6 +60,11 @@ value class SimpleMfvc(val x: UInt, val y: IC, val z: String) {
     context(SimpleMfvc)
     private val private2: SimpleMfvc
         get() = this@SimpleMfvc
+    
+    val a4: Int
+        get() = 2
+    val b4: SimpleMfvc
+        get() = this
 }
 
 fun smfvc(ic: IC, x: SimpleMfvc, ic1: UInt) = ic(ic) + x.x + ic(x.y) + ic1
@@ -154,5 +159,12 @@ fun box(): String {
     }
     
     require(idUnboxed(idBoxed(idUnboxed(o2) /*boxing*/) /*unbox*/) == o2)
+    
+    require(o2.a4 == 2)
+    require(o2.b4 == o2)
+    require(o2.b4.x == o2.x)
+    require(o2.b4.y == o2.y)
+    require(o2.b4.z == o2.z)
+    
     return "OK"
 }

compiler/testData/codegen/box/valueClasses/classFlattening.txt

@@ -160,9 +160,11 @@ public final class SimpleMfvc {
     public static method equals-impl(p0: int, p1: int, p2: java.lang.String, p3: java.lang.Object): boolean
     public final static method equals-impl0(p0: int, p1: int, p2: java.lang.String, p3: int, p4: int, p5: java.lang.String): boolean
     public final static @org.jetbrains.annotations.NotNull method getA3-sUp7gFk(p0: int, p1: int, @org.jetbrains.annotations.NotNull p2: java.lang.String, p3: int, p4: int, @org.jetbrains.annotations.NotNull p5: java.lang.String): SimpleMfvc
+    public final static method getA4-impl(p0: int, p1: int, @org.jetbrains.annotations.NotNull p2: java.lang.String): int
     public final static @org.jetbrains.annotations.NotNull method getB1-sUp7gFk(p0: int, p1: int, @org.jetbrains.annotations.NotNull p2: java.lang.String): SimpleMfvc
     public final static @org.jetbrains.annotations.NotNull method getB2-sUp7gFk(p0: int, p1: int, @org.jetbrains.annotations.NotNull p2: java.lang.String): SimpleMfvc
     public final static @org.jetbrains.annotations.NotNull method getB3-sUp7gFk(p0: int, p1: int, @org.jetbrains.annotations.NotNull p2: java.lang.String, p3: int, p4: int, @org.jetbrains.annotations.NotNull p5: java.lang.String): SimpleMfvc
+    public final static @org.jetbrains.annotations.NotNull method getB4-impl(p0: int, p1: int, @org.jetbrains.annotations.NotNull p2: java.lang.String): SimpleMfvc
     private final static method getPrivate1-sUp7gFk(p0: int, p1: int, p2: java.lang.String, p3: int, p4: int, p5: java.lang.String): SimpleMfvc
     private final static method getPrivate2-sUp7gFk(p0: int, p1: int, p2: java.lang.String): SimpleMfvc
     private final static method getPrivate2-sUp7gFk(p0: int, p1: int, p2: java.lang.String, p3: int, p4: int, p5: java.lang.String): SimpleMfvc

compiler/testData/codegen/box/valueClasses/inlineFunctions.kt

@@ -13,12 +13,24 @@ fun runSuspend(block: suspend () -> Unit) {
 }
 
 // FILE: dependency.kt
+import kotlin.math.sqrt
 
 @JvmInline
 value class DPoint(val x: Double, val y: Double)
 
+fun Double.square() = this * this
+
 @JvmInline
-value class DSegment(val p1: DPoint, val p2: DPoint)
+value class DSegment(val p1: DPoint, val p2: DPoint) {
+    inline val length
+        get() = sqrt((p1.x - p2.x).square() + (p1.y - p2.y).square())
+    inline val middle
+        get() = DPoint((p1.x + p2.x) / 2.0, (p1.y + p2.y) / 2.0)
+}
+inline val DSegment.length1
+    get() = length
+inline val DSegment.middle1
+    get() = middle
 
 
 inline fun DSegment.myLet(f: (DSegment) -> DPoint) = f(this)
@@ -26,6 +38,7 @@ inline fun DSegment.myLet(f: (DSegment) -> DPoint) = f(this)
 // FILE: test.kt
 import kotlin.coroutines.suspendCoroutine
 import kotlin.coroutines.resume
+import kotlin.math.sqrt
 
 fun supply(x: Any?) = Unit
 
@@ -68,6 +81,20 @@ fun box(): String {
     supply("o")
     runSuspend { require(suspendFun() == DPoint(1.0, 2.0).toString()) }
     supply("p")
+    require(segment.length == sqrt(5.0))
+    supply("q")
+    require(segment.length1 == sqrt(5.0))
+    supply("r")
+    require(segment.middle == DPoint(1.5, 3.0))
+    supply("s")
+    require(segment.middle1 == DPoint(1.5, 3.0))
+    supply("t")
+    require(segment.middle.x == 1.5)
+    require(segment.middle.y == 3.0)
+    supply("u")
+    require(segment.middle1.x == 1.5)
+    require(segment.middle1.y == 3.0)
+    supply("v")
     
     return "OK"
 }

compiler/testData/codegen/box/valueClasses/inlineFunctions.txt

@@ -51,6 +51,8 @@ public final class DSegment {
     public method equals(@org.jetbrains.annotations.Nullable p0: java.lang.Object): boolean
     public static method equals-impl(p0: double, p1: double, p2: double, p3: double, p4: java.lang.Object): boolean
     public final static method equals-impl0(p0: double, p1: double, p2: double, p3: double, p4: double, p5: double, p6: double, p7: double): boolean
+    public final static method getLength-impl(p0: double, p1: double, p2: double, p3: double): double
+    public final static @org.jetbrains.annotations.NotNull method getMiddle-impl(p0: double, p1: double, p2: double, p3: double): DPoint
     public final @org.jetbrains.annotations.NotNull method getP1(): DPoint
     public final @org.jetbrains.annotations.NotNull method getP2(): DPoint
     public method hashCode(): int
@@ -68,7 +70,10 @@ public final class DSegment {
 @kotlin.Metadata
 public final class DependencyKt {
     // source: 'dependency.kt'
+    public final static method getLength1-sUp7gFk(p0: double, p1: double, p2: double, p3: double): double
+    public final static @org.jetbrains.annotations.NotNull method getMiddle1-sUp7gFk(p0: double, p1: double, p2: double, p3: double): DPoint
     public final static @org.jetbrains.annotations.NotNull method myLet-GPBa7dw(p0: double, p1: double, p2: double, p3: double, @org.jetbrains.annotations.NotNull p4: kotlin.jvm.functions.Function1): DPoint
+    public final static method square(p0: double): double
 }
 
 @kotlin.coroutines.jvm.internal.DebugMetadata