FIR IDE: handle reference to package and outer classes

For a qualified name like `foo.bar.Outer.Inner`, FIR represents it as
one atomic FIR element. Hence, to properly resolve these names to the
corresponding package and class, we need some additional work.

idea/testData/findUsages/kotlin/companionObject/named.0.kt

@@ -1,3 +1,4 @@
+// FIR_COMPARISON
 // PSI_ELEMENT: org.jetbrains.kotlin.psi.KtObjectDeclaration
 // OPTIONS: usages
 class Foo {

idea/testData/findUsages/kotlin/companionObject/simple.0.kt

@@ -1,3 +1,4 @@
+// FIR_COMPARISON
 // PSI_ELEMENT: org.jetbrains.kotlin.psi.KtObjectDeclaration
 // OPTIONS: usages
 class Foo {

idea/testData/findUsages/kotlin/findObjectUsages/kotlinLocalObjectUsages1.0.kt

@@ -1,3 +1,4 @@
+// FIR_COMPARISON
 // PSI_ELEMENT: org.jetbrains.kotlin.psi.KtObjectDeclaration
 // OPTIONS: usages
 fun foo(): Any {

idea/testData/findUsages/kotlin/findObjectUsages/kotlinLocalObjectUsages1.results.txt

@@ -1 +1 @@
-Value read 6 return Bar
+Value read 7 return Bar

idea/testData/findUsages/kotlin/findObjectUsages/kotlinLocalObjectUsages2.0.kt

@@ -1,3 +1,4 @@
+// FIR_COMPARISON
 // PSI_ELEMENT: org.jetbrains.kotlin.psi.KtObjectDeclaration
 // OPTIONS: usages
 fun foo(): Any {

idea/testData/findUsages/kotlin/findObjectUsages/kotlinLocalObjectUsages2.results.txt

@@ -1 +1 @@
-Value read 7 return Bar
+Value read 8 return Bar

idea/testData/resolve/references/TopLevelClassVsLocalClassQualifier.kt

@@ -1,5 +1,3 @@
-// IGNORE_FIR
-
 package test
 
 class Conflict

idea/testData/resolve/references/TopLevelObjectVsLocalClassQualifier.kt

@@ -1,3 +1,4 @@
+// IGNORE_FIR
 package test
 
 object Conflict

idea/testData/resolve/references/qualifiedAccess/ResolveFirstPackageOfFullyQualifiedReference.kt

@@ -0,0 +1,13 @@
+package foo.bar.baz
+
+class AA {
+    class BB {
+        companion object
+    }
+}
+
+fun test() {
+    val b = f<caret>oo.bar.baz.AA.BB
+}
+
+// REF: foo

idea/testData/resolve/references/qualifiedAccess/ResolveFullyQualifiedCompanionObject.kt

@@ -0,0 +1,14 @@
+// IGNORE_FIR
+package foo.bar.baz
+
+class AA {
+    class BB {
+        companion object
+    }
+}
+
+fun test() {
+    val b = foo.bar.baz.AA.B<caret>B
+}
+
+// REF: companion object of (in foo.bar.baz.AA).BB

idea/testData/resolve/references/qualifiedAccess/ResolveOuterClassOfFullyQualifiedReference.kt

@@ -0,0 +1,13 @@
+package foo.bar.baz
+
+class AA {
+    class BB {
+        companion object
+    }
+}
+
+fun test() {
+    val b = foo.bar.baz.A<caret>A.BB
+}
+
+// REF: (foo.bar.baz).AA

idea/testData/resolve/references/qualifiedAccess/ResolvePackageOfFullyQualifiedReference.kt

@@ -0,0 +1,13 @@
+package foo.bar.baz
+
+class AA {
+    class BB {
+        companion object
+    }
+}
+
+fun test() {
+    val b = foo.bar.b<caret>az.AA.BB
+}
+
+// REF: baz

idea/testData/resolve/references/qualifiedAccess/callableReference1.kt

@@ -0,0 +1,11 @@
+package foo.bar.baz
+
+class AA {
+    fun foo() {}
+}
+
+fun test() {
+    A<caret>A::foo
+}
+
+// REF: (foo.bar.baz).AA

idea/testData/resolve/references/qualifiedAccess/callableReference2.kt

@@ -0,0 +1,14 @@
+// IGNORE_FE10
+package foo.bar.baz
+
+class AA {
+    companion object {
+        fun foo() {}
+    }
+}
+
+fun test() {
+    A<caret>A::foo // FE1.0 won't resolve this
+}
+
+// REF: companion object of (foo.bar.baz).AA

idea/testData/resolve/references/qualifiedAccess/callableReference3.kt

@@ -0,0 +1,14 @@
+// IGNORE_FE10
+package foo.bar.baz
+
+class AA {
+    companion object
+}
+
+fun AA.Companion.foo() {}
+
+fun test() {
+    A<caret>A::foo // FE1.0 won't resolve this
+}
+
+// REF: companion object of (foo.bar.baz).AA