K2: Adjust renaming on import for current package with K1 rules

Namely, once a file in a package `foo` has import `foo.bar as baz`,
auto imported `bar` from the package name becomes inivisible in the file

^KT-54854 Fixed

compiler/testData/diagnostics/tests/imports/ImportFromCurrentWithDifferentNameComplex.kt

@@ -0,0 +1,29 @@
+// ISSUE: KT-54854
+package a
+
+import a.A as ER
+import a.x as y
+import a.foo as bar
+
+val x: Int = 1
+
+fun foo(): Int = 1
+
+class A
+
+interface B {
+    val a: <!UNRESOLVED_REFERENCE!>A<!>
+    val b: ER
+}
+
+fun main() {
+    <!UNRESOLVED_REFERENCE!>A<!>()
+    ER()
+    a.A()
+
+    <!UNRESOLVED_REFERENCE!>x<!> <!DEBUG_INFO_MISSING_UNRESOLVED!>+<!> 1
+    y + 1
+
+    <!UNRESOLVED_REFERENCE!>foo<!>() <!DEBUG_INFO_MISSING_UNRESOLVED!>+<!> 1
+    bar() + 1
+}