Primitive array constructor-like functions with init lambda.

#KT-8831

Update testData and resolve ambiguity in newArray test

libraries/stdlib/test/collections/ArraysTest.kt

@@ -46,6 +46,14 @@ class ArraysTest {
         assertEquals(expected, arr[1])
     }
 
+    @test fun byteArrayInit() {
+        val arr = ByteArray(2) { it.toByte() }
+
+        assertEquals(2, arr.size)
+        assertEquals(0.toByte(), arr[0])
+        assertEquals(1.toByte(), arr[1])
+    }
+
     @test fun shortArray() {
         val arr = ShortArray(2)
 
@@ -55,6 +63,14 @@ class ArraysTest {
         assertEquals(expected, arr[1])
     }
 
+    @test fun shortArrayInit() {
+        val arr = ShortArray(2) { it.toShort() }
+
+        assertEquals(2, arr.size)
+        assertEquals(0.toShort(), arr[0])
+        assertEquals(1.toShort(), arr[1])
+    }
+    
     @test fun intArray() {
         val arr = IntArray(2)
 
@@ -62,7 +78,15 @@ class ArraysTest {
         assertEquals(0, arr[0])
         assertEquals(0, arr[1])
     }
+    
+    @test fun intArrayInit() {
+        val arr = IntArray(2) { it.toInt() }
 
+        assertEquals(2, arr.size)
+        assertEquals(0.toInt(), arr[0])
+        assertEquals(1.toInt(), arr[1])
+    }
+    
     @test fun longArray() {
         val arr = LongArray(2)
 
@@ -72,6 +96,14 @@ class ArraysTest {
         assertEquals(expected, arr[1])
     }
 
+    @test fun longArrayInit() {
+        val arr = LongArray(2) { it.toLong() }
+
+        assertEquals(2, arr.size)
+        assertEquals(0.toLong(), arr[0])
+        assertEquals(1.toLong(), arr[1])
+    }
+
     @test fun floatArray() {
         val arr = FloatArray(2)
 
@@ -80,6 +112,14 @@ class ArraysTest {
         assertEquals(expected, arr[0])
         assertEquals(expected, arr[1])
     }
+    
+    @test fun floatArrayInit() {
+        val arr = FloatArray(2) { it.toFloat() }
+
+        assertEquals(2, arr.size)
+        assertEquals(0.toFloat(), arr[0])
+        assertEquals(1.toFloat(), arr[1])
+    }
 
     @test fun doubleArray() {
         val arr = DoubleArray(2)
@@ -89,6 +129,14 @@ class ArraysTest {
         assertEquals(0.0, arr[1])
     }
 
+    @test fun doubleArrayInit() {
+        val arr = DoubleArray(2) { it.toDouble() }
+
+        assertEquals(2, arr.size)
+        assertEquals(0.toDouble(), arr[0])
+        assertEquals(1.toDouble(), arr[1])
+    }
+
     @test fun charArray() {
         val arr = CharArray(2)
 
@@ -98,6 +146,14 @@ class ArraysTest {
         assertEquals(expected, arr[1])
     }
 
+    @test fun charArrayInit() {
+        val arr = CharArray(2) { 'a' + it }
+
+        assertEquals(2, arr.size)
+        assertEquals('a', arr[0])
+        assertEquals('b', arr[1])
+    }
+
     @test fun booleanArray() {
         val arr = BooleanArray(2)
         assertEquals(arr.size, 2)
@@ -105,6 +161,14 @@ class ArraysTest {
         assertEquals(false, arr[1])
     }
 
+    @test fun booleanArrayInit() {
+        val arr = BooleanArray(2) { it % 2 == 0 }
+
+        assertEquals(2, arr.size)
+        assertEquals(true, arr[0])
+        assertEquals(false, arr[1])
+    }
+
     @test fun min() {
         expect(null, { arrayOf<Int>().min() })
         expect(1, { arrayOf(1).min() })