[IR BE] Fix inline class lowering

- provide additional type parameters from context when transforming
 constructor into static function.
 - fix KT-41771
 - add test

compiler/testData/codegen/box/inlineClasses/genericVararg2ndConstructor.kt

@@ -0,0 +1,11 @@
+// KJS_WITH_FULL_RUNTIME
+// WITH_RUNTIME
+// KT-41771
+
+inline class Polynomial<T : Any>(val coefficients: List<T>) {
+    constructor(vararg coefficients: T) : this(coefficients.toList())
+}
+fun box(): String {
+    val p = Polynomial("FAIL1", "OK", "FAIL2")
+    return p.coefficients[1]
+}