Convert lambda to callable reference intention / inspection #KT-10903 Fixed

(cherry picked from commit b620099)

idea/testData/intentions/convertLambdaToReference/unit.kt

@@ -0,0 +1,9 @@
+// IS_APPLICABLE: false
+
+fun Int.exec(f: (Int) -> Unit) = f(this)
+
+fun bar(x: Int) = x
+
+fun foo() {
+    2.exec {<caret> bar(it) }
+}