Implemented Operator To Function intention action.

Converts +a, --a, a * b, a..b, a %= b, a in b, etc. to their function call counterparts.

idea/testData/intentions/operatorToFunction/notApplicableFunctionCallWithCallableReference.kt

@@ -0,0 +1,6 @@
+// WITH_RUNTIME
+// IS_APPLICABLE: false
+fun foo() {
+    val bar = { (x: Int) -> x + 1 }
+    val incremented = listOf(1, 2, 3).<caret>map(bar)
+}