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/quickfix/autoImports/noImportInSafeQualifiedExpressionNotFirst.after.kt

@@ -1,5 +1,8 @@
 // "class com.intellij.codeInsight.daemon.impl.quickfix.ImportClassFixBase" "false"
 // ERROR: Unresolved reference: SomeTest
+// ACTION: Edit intention settings
+// ACTION: Replace safe access expression with 'if' expression
+// ACTION: Disable 'Replace Safe Access Expression with 'if' Expression'
 
 package testing