K2: Fix priority for implicit receiver + extensionInvoke

See K1 counterpart at org.jetbrains.kotlin.resolve.calls.tower.TowerResolver.Task.processImplicitReceiver

^KT-58943 Fixed
^KT-59541 Fixed

compiler/fir/analysis-tests/testData/resolveWithStdlib/problems/invokePriority.fir.txt

@@ -14,7 +14,7 @@ FILE: invokePriority.kt
 
             String(1).R|<local>/foo|()
             R|kotlin/with|<R|kotlin/String|, R|kotlin/Unit|>(String(2), <L> = with@fun R|kotlin/String|.<anonymous>(): R|kotlin/Unit| <inline=Inline, kind=EXACTLY_ONCE>  {
-                this@R|special/anonymous|.R|<local>/foo|()
+                R|<local>/foo|.R|SubstitutionOverride<kotlin/Function1.invoke: R|kotlin/Unit|>|(this@R|special/anonymous|)
             }
             )
         }

compiler/fir/analysis-tests/testData/resolveWithStdlib/problems/invokePriority.kt

@@ -4,7 +4,7 @@ class A {
         fun String.foo(): Unit {} // (2)
         "1".foo() // resolves to (2)
         with("2") {
-            foo() // BUG: resolves to (1) in old FE, but to (2) in FIR
+            foo() // resolves to (1)
         }
     }
 }