Add test for lookups to top level declarations

jps-plugin/testData/incremental/lookupTracker/packageDeclarations/bar.kt

@@ -0,0 +1,7 @@
+package bar
+
+/*p:bar*/class A
+
+/*p:bar*/class B
+
+/*p:bar*/object O

jps-plugin/testData/incremental/lookupTracker/packageDeclarations/baz.kt

@@ -0,0 +1,7 @@
+package baz
+
+/*p:baz*/class A
+
+/*p:baz*/class B
+
+/*p:baz*/class C

jps-plugin/testData/incremental/lookupTracker/packageDeclarations/foo1.kt

@@ -0,0 +1,17 @@
+package foo
+
+import bar.*
+import baz./*p:baz*/C
+
+/*p:foo*/val a = /**p:foo p:bar*/A()
+/*p:foo*/var b: /*p:foo p:bar*/baz./*p:baz*/B = /**p:foo p:bar*/baz./**p:baz*/B()
+
+/*p:foo*/fun function(p: /*p:foo p:bar*/B): /*p:foo p:bar*/B {
+    /**p:foo*/a
+    return /**p:foo p:bar*/B()
+}
+
+/*p:foo*/fun /*p:foo*/MyClass.extFunc(p: /**p:foo p:bar*//*p:foo*/Array</*p:foo p:bar*/B>, e: /*p:foo*/MyEnum, c: /**???*/C): /*p:foo*/MyInterface {
+    /**p:foo*/b
+    return /**p:foo*/MyClass()
+}

jps-plugin/testData/incremental/lookupTracker/packageDeclarations/foo2.kt

@@ -0,0 +1,7 @@
+package foo
+
+/*p:foo*/interface MyInterface
+
+/*p:foo*/class MyClass : /*p:foo*/MyInterface
+
+/*p:foo*/enum class MyEnum

jps-plugin/testData/incremental/lookupTracker/simple/main.kt

@@ -1,6 +1,6 @@
 package foo.bar
 
-fun main(args: /*p:foo.bar*/Array</*p:foo.bar*/String>) {
+/*p:foo.bar*/fun main(args: /*p:foo.bar*/Array</*p:foo.bar*/String>) {
     val f: /*p:foo.bar*/Array</*p:foo.bar*/Int>
     val s: /*p:foo.bar*/String
 }