Do not create Array instance in kotlin-reflect where not necessary

Although the previous code of computing JVM internal name from a Class
instance was shorter, it led to unnecessary creation of array types,
which is less performant and makes configuration of kotlin-reflect for
GraalVM native-image more verbose.

Unfortunately I didn't succeed in writing a test for this, since
`Array.newInstance` calls a native method which doesn't record any trace
of it being called in the class loader: the resulting array type never
goes through findClass/loadClass, and is not visible via
findLoadedClass.

 #KT-44594 Fixed

core/reflection.jvm/src/kotlin/reflect/jvm/internal/KDeclarationContainerImpl.kt

@@ -19,7 +19,6 @@ package kotlin.reflect.jvm.internal
 import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.runtime.components.RuntimeModuleData
 import org.jetbrains.kotlin.descriptors.runtime.components.tryLoadClass
-import org.jetbrains.kotlin.descriptors.runtime.structure.createArrayType
 import org.jetbrains.kotlin.descriptors.runtime.structure.safeClassLoader
 import org.jetbrains.kotlin.descriptors.runtime.structure.wrapperByPrimitive
 import org.jetbrains.kotlin.load.java.JvmAbi

core/reflection.jvm/src/kotlin/reflect/jvm/internal/KTypeImpl.kt

@@ -19,7 +19,6 @@ package kotlin.reflect.jvm.internal
 import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.descriptors.TypeAliasDescriptor
 import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor
-import org.jetbrains.kotlin.descriptors.runtime.structure.createArrayType
 import org.jetbrains.kotlin.descriptors.runtime.structure.parameterizedTypeArguments
 import org.jetbrains.kotlin.descriptors.runtime.structure.primitiveByWrapper
 import org.jetbrains.kotlin.types.KotlinType

core/reflection.jvm/src/kotlin/reflect/jvm/internal/util.kt

@@ -101,6 +101,9 @@ private fun loadClass(classLoader: ClassLoader, packageName: String, className:
     return classLoader.tryLoadClass(fqName)
 }
 
+internal fun Class<*>.createArrayType(): Class<*> =
+    java.lang.reflect.Array.newInstance(this, 0)::class.java
+
 internal fun DescriptorVisibility.toKVisibility(): KVisibility? =
     when (this) {
         DescriptorVisibilities.PUBLIC -> KVisibility.PUBLIC