[FIR] Add ArrayEqualityOpCanBeReplacedWithEquals checker

compiler/fir/analysis-tests/testData/extendedCheckers/ArrayEqualityCanBeReplacedWithEquals.kt

@@ -0,0 +1,17 @@
+// WITH_RUNTIME
+
+fun foo(p: Int) {
+    val a = arrayOf(1, 2, 3)
+    val b = arrayOf(3, 2, 1)
+
+    if (a <!ARRAY_EQUALITY_OPERATOR_CAN_BE_REPLACED_WITH_EQUALS!>==<!> b) { }
+}
+
+fun testsFromIdea() {
+    val a = arrayOf("a")
+    val b = a
+    val c: Any? = null
+    a <!ARRAY_EQUALITY_OPERATOR_CAN_BE_REPLACED_WITH_EQUALS!>==<!> b
+    a == c
+    a <!ARRAY_EQUALITY_OPERATOR_CAN_BE_REPLACED_WITH_EQUALS!>!=<!> b
+}