[FIR] Create builtin primitive array types for properties

If the primary constructor has a vararg parameter, the corresponding
property has an array type. This commit creates the builtin array
types for such properties if the vararg element type is primitive,
e.g., CharArray instead of Array.

compiler/testData/codegen/box/innerNested/superConstructorCall/innerExtendsOuter.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // TARGET_BACKEND: JVM
 
 // When inner class extends its outer, there are two instances of the outer present in the inner: