[LL FIR] ContextCollector: add tests for file package and imports

It reproduces redundant resolution

^KT-65344
^KT-65560

analysis/low-level-api-fir/testData/contextCollector/fileImportInside.copy.txt

@@ -0,0 +1,24 @@
+Tower Data Context:
+    Element 0
+        Scope: FirDefaultStarImportingScope
+    Element 1
+        Scope: FirExplicitStarImportingScope
+    Element 2
+        Scope: FirDefaultSimpleImportingScope
+    Element 3
+        Scope: FirDefaultSimpleImportingScope
+    Element 4
+        Scope: FirPackageMemberScope
+    Element 5
+        Scope: FirExplicitSimpleImportingScope
+            Import name:Anno
+                Qualified name: foo.Anno
+                Is all under: false
+
+FILE: [ResolvedTo(IMPORTS)] fileImportInside.kt
+    @R|kotlin/annotation/Target|[Types](FILE#) public final [ResolvedTo(STATUS)] annotation class Anno : R|kotlin/Annotation| {
+        public [ResolvedTo(BODY_RESOLVE)] constructor(): R|foo/Anno| {
+            super<R|kotlin/Any|>()
+        }
+
+    }