Package vs class conflict in qualifier resolution:

- add test for unresolved 'a.a' after 'import a.a';
- added TODO in copy-paste test for 'a.a'

compiler/testData/diagnostics/tests/qualifiedExpression/PackageVsClass2.kt

@@ -1,7 +1,12 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
 // MODULE: m1
 // FILE: a.kt
 package a
 
+class a {
+    companion object {}
+}
+
 class b {
     fun a_b() {}
 }
@@ -12,4 +17,17 @@ package test
 
 class a
 
-val x = a.<!UNRESOLVED_REFERENCE!>b<!>()
+val x = a.<!UNRESOLVED_REFERENCE!>b<!>()
+
+// MODULE: m3(m1)
+// FILE: c.kt
+package test
+
+import a.a
+
+fun foo(i: a) {
+    a
+    a()
+    a.<!UNRESOLVED_REFERENCE!>a<!>
+    a.<!UNRESOLVED_REFERENCE!>a<!>()
+}

compiler/testData/diagnostics/tests/qualifiedExpression/PackageVsClass2.txt

@@ -3,6 +3,20 @@ package
 
 package a {
 
+    public final class a {
+        public constructor a()
+        public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+        public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+        public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+
+        public companion object Companion {
+            private constructor Companion()
+            public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+            public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+            public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+        }
+    }
+
     public final class b {
         public constructor b()
         public final fun a_b(): kotlin.Unit
@@ -18,6 +32,10 @@ package
 
 package a {
 
+    public final class a {
+        // -- Module: <m1> --
+    }
+
     public final class b {
         // -- Module: <m1> --
     }
@@ -35,3 +53,22 @@ package test {
 }
 
 
+// -- Module: <m3> --
+package
+
+package a {
+
+    public final class a {
+        // -- Module: <m1> --
+    }
+
+    public final class b {
+        // -- Module: <m1> --
+    }
+}
+
+package test {
+    public fun foo(/*0*/ i: a.a): kotlin.Unit
+}
+
+

idea/testData/copyPaste/imports/ClassResolvedToPackage.expected.kt

@@ -1,9 +1,14 @@
 // ERROR: Unresolved reference: a
+// ERROR: Unresolved reference: a
+// ERROR: Unresolved reference: a
 package to
 
 import a.a
 
-fun f(i: a.a) { // todo must be i: a
-    a
-    a()
+fun f(i: a.a) {
+    // TODO References shortening doesn't work for package vs class conflicts under the new resolution rules.
+    // After importing 'a.a', expression 'a.a' is unresolved (since 'a' becomes a class).
+    // 'package' in expression syntax might be required to fix it properly.
+    a.a
+    a.a()
 }

idea/testData/copyPaste/imports/ClassResolvedToPackage.kt

@@ -5,7 +5,10 @@ class a {
     }
 }
 
-<selection>fun f(i: a) { // todo must be i: a
+<selection>fun f(i: a) {
+    // TODO References shortening doesn't work for package vs class conflicts under the new resolution rules.
+    // After importing 'a.a', expression 'a.a' is unresolved (since 'a' becomes a class).
+    // 'package' in expression syntax might be required to fix it properly.
     a
     a()
 }</selection>