Prefer package with class files to class with the same name

See comments in JvmDependenciesIndexImpl and in the test

 #KT-15464 Fixed

compiler/testData/compileKotlinAgainstCustomBinaries/innerClassPackageConflict2/library1/test/Boo.java

@@ -0,0 +1,5 @@
+package test;
+
+public class Boo {
+    public interface Nested {}
+}

compiler/testData/compileKotlinAgainstCustomBinaries/innerClassPackageConflict2/library1/test/Foo.java

@@ -0,0 +1,6 @@
+package test;
+
+public class Foo {
+    public interface Nested {
+    }
+}

compiler/testData/compileKotlinAgainstCustomBinaries/innerClassPackageConflict2/library2/test/Boo/SubBoo/C.java

@@ -0,0 +1,5 @@
+package test.Boo.SubBoo;
+
+public class C {
+    public interface Nested {}
+}

compiler/testData/compileKotlinAgainstCustomBinaries/innerClassPackageConflict2/library2/test/Foo/Bar.java

@@ -0,0 +1,4 @@
+package test.Foo;
+
+public class Bar {
+}

compiler/testData/compileKotlinAgainstCustomBinaries/innerClassPackageConflict2/output.txt

@@ -0,0 +1,10 @@
+compiler/testData/compileKotlinAgainstCustomBinaries/innerClassPackageConflict2/source.kt:10:9: error: unresolved reference: Nested
+val v3: Nested? = null
+        ^
+compiler/testData/compileKotlinAgainstCustomBinaries/innerClassPackageConflict2/source.kt:11:18: error: unresolved reference: Nested
+val v4: test.Foo.Nested? = null
+                 ^
+compiler/testData/compileKotlinAgainstCustomBinaries/innerClassPackageConflict2/source.kt:14:18: error: unresolved reference: Nested
+val v6: test.Boo.Nested? = null
+                 ^
+COMPILATION_ERROR

compiler/testData/compileKotlinAgainstCustomBinaries/innerClassPackageConflict2/source.kt

@@ -0,0 +1,14 @@
+import test.Foo.*
+
+// Note that unlike in Java, in Kotlin we currently mostly prefer package to class in qualified name resolution.
+// So here, for example, we see both the package and the class with the name test.Foo, and prefer the former.
+// So 'Bar' should be resolved, 'Nested' should be unresolved.
+// For javac, the opposite is true: 'Bar' would be unresolved in a similar situation, 'Nested' would be resolved.
+
+val v1: Bar? = null
+val v2: test.Foo.Bar? = null
+val v3: Nested? = null
+val v4: test.Foo.Nested? = null
+
+val v5: test.Boo.SubBoo.C.Nested? = null
+val v6: test.Boo.Nested? = null