Call Hierarchy: Do not interrupt caller hierarchy on non-local caller of local root declaration

#KT-6183 Fixed

idea/testData/hierarchy/calls/callers/kotlinLocalFunctionWithNonLocalCallers/KotlinLocalFunctionWithNonLocalCallers_verification.xml

@@ -0,0 +1,5 @@
+<node text="test1.foo()  ()" base="true">
+  <node text="test1()  ()">
+    <node text="test()  ()"/>
+  </node>
+</node>

idea/testData/hierarchy/calls/callers/kotlinLocalFunctionWithNonLocalCallers/main0.kt

@@ -0,0 +1,10 @@
+fun test() {
+    test1()
+}
+
+fun test1() {
+    fun foo() {
+
+    }
+    <caret>foo()
+}