Refactored tests using Array constructor:

Some moved to tests with stdlib
Some changed to use arrayOfNulls

compiler/testData/diagnostics/testsWithStdLib/inference/arrayConstructor.kt

@@ -0,0 +1,12 @@
+package b
+
+fun bar() {
+    val a1 = Array(1, {(i: Int) -> i})
+    val a2 = Array(1, {(i: Int) -> "$i"})
+    val a3 = Array(1, {it})
+
+    a1 : Array<Int>
+    a2 : Array<String>
+    a3 : Array<Int>
+}
+