FIR2IR: insert spread for named argument against primitive vararg

#KT-60312 Fixed

compiler/testData/ir/irText/firProblems/IntArrayAsVararg.fir.ir.txt

@@ -1,16 +0,0 @@
-FILE fqName:<root> fileName:/IntArrayAsVararg.kt
-  FUN name:main visibility:public modality:FINAL <> () returnType:kotlin.Unit
-    BLOCK_BODY
-      CALL 'public final fun consumeVarargs (vararg arr: kotlin.Int): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
-        arr: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
-          CONST Int type=kotlin.Int value=1
-          CONST Int type=kotlin.Int value=2
-      CALL 'public final fun consumeVarargs (vararg arr: kotlin.Int): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
-        arr: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
-          CALL 'public final fun intArrayOf (vararg elements: kotlin.Int): kotlin.IntArray declared in kotlin' type=kotlin.IntArray origin=null
-            elements: VARARG type=kotlin.IntArray varargElementType=kotlin.Int
-              CONST Int type=kotlin.Int value=41
-              CONST Int type=kotlin.Int value=42
-  FUN name:consumeVarargs visibility:public modality:FINAL <> (arr:kotlin.IntArray) returnType:kotlin.Unit
-    VALUE_PARAMETER name:arr index:0 type:kotlin.IntArray varargElementType:kotlin.Int [vararg]
-    BLOCK_BODY

compiler/testData/ir/irText/firProblems/IntArrayAsVararg.fir.kt.txt

@@ -1,7 +0,0 @@
-fun main() {
-  consumeVarargs(arr = [1, 2])
-  consumeVarargs(arr = [intArrayOf(elements = [41, 42])])
-}
-
-fun consumeVarargs(vararg arr: Int) {
-}

compiler/testData/ir/irText/firProblems/IntArrayAsVararg.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // WITH_STDLIB
 // ISSUE: KT-60312
 // SKIP_SIGNATURE_DUMP