Postpone call arguments generation in compound assignment expressions

Otherwise RHS is generated twice, causing ISE in symbol binding

compiler/testData/ir/irText/expressions/lambdaInCAO.kt

@@ -0,0 +1,16 @@
+operator fun Any.plusAssign(lambda: () -> Unit) {}
+
+operator fun Any.get(index: () -> Unit): Int = 42
+operator fun Any.set(index: () -> Unit, value: Int) {}
+
+fun test1(a: Any) {
+    a += {  }
+}
+
+fun test2(a: Any) {
+    a[{}] += 42
+}
+
+fun test3(a: Any) {
+    a[{}]++
+}