FIR checker: substitute type parameters in dispatch receiver type

Consider the following code:

```
fun test(a: List<String>) {
  a.first()
}
```

The dispatch receiver type of `first` in this case is `List<T>` before
this change. After this change, it's `List<String>`.

In addition, this change also replace the dispatch receiver type with
the more specific type if available. For example, consider the following

```
class MyList: ArrayList<String>()

fun test(a: MyList) {
  a.get(0)
}
```
The dispatch receiver type of `get` is `MyList`, instead of
`ArrayList<String>`. That is, a fake override is created in this case.

compiler/testData/ir/irText/regressions/coercionInLoop.fir.txt

@@ -10,7 +10,7 @@ FILE fqName:<root> fileName:/coercionInLoop.kt
       VAR name:i type:kotlin.Int [var]
         CONST Int type=kotlin.Int value=0
       WHILE label=null origin=WHILE_LOOP
-        condition: CALL 'public abstract fun hasNext (): kotlin.Boolean [operator] declared in kotlin.collections.Iterator' type=kotlin.Boolean origin=null
+        condition: CALL 'public abstract fun hasNext (): kotlin.Boolean [fake_override,operator] declared in kotlin.collections.DoubleIterator' type=kotlin.Boolean origin=null
           $this: GET_VAR 'val x: kotlin.collections.DoubleIterator [val] declared in <root>.box' type=kotlin.collections.DoubleIterator origin=null
         body: BLOCK type=kotlin.Int origin=null
           WHEN type=kotlin.Unit origin=IF