Generate metadata and annotations for hidden constructor

Reflection expects to see a callable method for a hidden constructor,
thus, it should be a synthetic accessor.
JVM method signature in metadata should point to the synthetic accessor.
Annotations for hidden constructor should be written on the synthetic
accessor.

compiler/testData/codegen/bytecodeListing/inlineClasses/annotationsOnHiddenConstructor.kt

@@ -0,0 +1,18 @@
+// !LANGUAGE: +InlineClasses
+
+annotation class Ann
+
+inline class Z(val x: Int)
+
+class Test @Ann constructor(@Ann val z: Z) {
+    @Ann constructor(z: Z, @Ann a: Int) : this(z)
+    @Ann private constructor(z: Z, @Ann s: String) : this(z)
+
+    inner class Inner @Ann constructor(x: Int, @Ann val z2: Z, @Ann y: String)
+}
+
+sealed class Sealed @Ann constructor(@Ann val z: Z) {
+    class Derived @Ann constructor(z: Z) : Sealed(z)
+
+    inner class Inner @Ann constructor(x: Int, @Ann val z2: Z, @Ann y: String)
+}

compiler/testData/codegen/bytecodeListing/inlineClasses/annotationsOnHiddenConstructor.txt

@@ -0,0 +1,69 @@
+@java.lang.annotation.Retention
+@kotlin.Metadata
+public annotation class Ann
+
+@kotlin.Metadata
+public final class Sealed$Derived {
+    inner class Sealed$Derived
+    private method <init>(p0: int): void
+    public synthetic @Ann method <init>(p0: int, p1: kotlin.jvm.internal.DefaultConstructorMarker): void
+}
+
+@kotlin.Metadata
+public final class Sealed$Inner {
+    synthetic final field this$0: Sealed
+    private final field z2: int
+    inner class Sealed$Inner
+    public synthetic @Ann method <init>(@java.lang.Synthetic p0: Sealed, p1: int, @Ann p2: int, @Ann p3: java.lang.String, p4: kotlin.jvm.internal.DefaultConstructorMarker): void
+    private method <init>(p0: Sealed, p1: int, p2: int, p3: java.lang.String): void
+    public final method getZ2(): int
+}
+
+@kotlin.Metadata
+public abstract class Sealed {
+    private final field z: int
+    inner class Sealed$Derived
+    inner class Sealed$Inner
+    private @Ann method <init>(@Ann p0: int): void
+    public synthetic method <init>(@Ann p0: int, p1: kotlin.jvm.internal.DefaultConstructorMarker): void
+    public final method getZ(): int
+}
+
+@kotlin.Metadata
+public final class Test$Inner {
+    synthetic final field this$0: Test
+    private final field z2: int
+    inner class Test$Inner
+    public synthetic @Ann method <init>(@java.lang.Synthetic p0: Test, p1: int, @Ann p2: int, @Ann p3: java.lang.String, p4: kotlin.jvm.internal.DefaultConstructorMarker): void
+    private method <init>(p0: Test, p1: int, p2: int, p3: java.lang.String): void
+    public final method getZ2(): int
+}
+
+@kotlin.Metadata
+public final class Test {
+    private final field z: int
+    inner class Test$Inner
+    public synthetic @Ann method <init>(@Ann p0: int, p1: kotlin.jvm.internal.DefaultConstructorMarker): void
+    private method <init>(p0: int): void
+    public synthetic @Ann method <init>(p0: int, @Ann p1: int, p2: kotlin.jvm.internal.DefaultConstructorMarker): void
+    private @Ann method <init>(p0: int, @Ann p1: java.lang.String): void
+    private method <init>(p0: int, p1: int): void
+    public final method getZ(): int
+}
+
+@kotlin.Metadata
+public final class Z {
+    private final field x: int
+    private synthetic method <init>(p0: int): void
+    public synthetic final static @org.jetbrains.annotations.NotNull method box-impl(p0: int): Z
+    public static method constructor-impl(p0: int): int
+    public method equals(p0: java.lang.Object): boolean
+    public static method equals-impl(p0: int, @org.jetbrains.annotations.Nullable p1: java.lang.Object): boolean
+    public final static method equals-impl0(p0: int, p1: int): boolean
+    public final method getX(): int
+    public method hashCode(): int
+    public static method hashCode-impl(p0: int): int
+    public method toString(): java.lang.String
+    public static @org.jetbrains.annotations.NotNull method toString-impl(p0: int): java.lang.String
+    public synthetic final method unbox-impl(): int
+}

compiler/testData/codegen/bytecodeListing/inlineClasses/inlineClassTypeParametersInConstructor.txt

@@ -11,11 +11,11 @@ public interface PublicMarker
 public class TestBasic {
     private final field z: int
     private method <init>(p0: int): void
-    public synthetic method <init>(p0: int, @org.jetbrains.annotations.NotNull p1: ProtectedMarker, p2: kotlin.jvm.internal.DefaultConstructorMarker): void
-    public synthetic method <init>(p0: int, @org.jetbrains.annotations.NotNull p1: PublicMarker, p2: kotlin.jvm.internal.DefaultConstructorMarker): void
     private method <init>(p0: int, p1: PrivateMarker): void
     private method <init>(p0: int, p1: ProtectedMarker): void
+    public synthetic method <init>(p0: int, p1: ProtectedMarker, p2: kotlin.jvm.internal.DefaultConstructorMarker): void
     private method <init>(p0: int, p1: PublicMarker): void
+    public synthetic method <init>(p0: int, p1: PublicMarker, p2: kotlin.jvm.internal.DefaultConstructorMarker): void
     public synthetic method <init>(p0: int, p1: kotlin.jvm.internal.DefaultConstructorMarker): void
     public final method getZ(): int
 }