Value classes: treat @JvmInline value classes as inline classes

Report error on value classes without @JvmInline annotation.
Do not check for @JvmInline annotation in value classes since
it breaks reflection.

compiler/testData/diagnostics/tests/valueClasses/constructorsJvmSignaturesClash.kt

@@ -0,0 +1,24 @@
+// !LANGUAGE: +InlineClasses
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+package kotlin
+
+annotation class JvmInline
+
+@JvmInline
+value class X(val x: Int)
+@JvmInline
+value class Z(val x: Int)
+
+class TestOk1(val a: Int, val b: Int) {
+    constructor(x: X) : this(x.x, 1)
+}
+
+class TestErr1(val a: Int) {
+    <!CONFLICTING_JVM_DECLARATIONS!>constructor(x: X)<!> : this(x.x)
+}
+
+class <!CONFLICTING_JVM_DECLARATIONS!>TestErr2(val a: Int, val b: Int)<!> {
+    <!CONFLICTING_JVM_DECLARATIONS!>constructor(x: X)<!> : this(x.x, 1)
+    <!CONFLICTING_JVM_DECLARATIONS!>constructor(z: Z)<!> : this(z.x, 2)
+}