When expression.

Fix object & enum references.

compiler/testData/ir/irText/destructuring1.txt

@@ -3,7 +3,7 @@ IrFunction public fun B.test(): kotlin.Unit
     BLOCK type=<no-type> hasResult=false operator=null
       BLOCK type=<no-type> hasResult=false operator=SYNTHETIC_BLOCK
         VAR val tmp0: A
-          GET_VAR A type=A operator=null
+          GET_OBJECT A type=A
         VAR val x: kotlin.Int
           CALL .component1 type=kotlin.Int operator=COMPONENT_N(index=1)
             $this: $RECEIVER of: test type=B

compiler/testData/ir/irText/values.kt

@@ -0,0 +1,11 @@
+enum class Enum { A }
+object A
+val a = 0
+class Z {
+    companion object
+}
+
+fun test1() = Enum.A
+fun test2() = A
+fun test3() = a
+fun test4() = Z

compiler/testData/ir/irText/values.txt

@@ -0,0 +1,27 @@
+IrFile /values.kt
+  DUMMY Enum
+  DUMMY A
+  IrProperty public val a: kotlin.Int = 0 getter=null setter=null
+    IrExpressionBody
+      LITERAL Int type=kotlin.Int value='0'
+  DUMMY Z
+  IrFunction public fun test1(): Enum
+    IrExpressionBody
+      BLOCK type=<no-type> hasResult=false operator=null
+        RETURN type=<no-type>
+          GET_ENUM_VALUE A type=Enum
+  IrFunction public fun test2(): A
+    IrExpressionBody
+      BLOCK type=<no-type> hasResult=false operator=null
+        RETURN type=<no-type>
+          GET_OBJECT A type=A
+  IrFunction public fun test3(): kotlin.Int
+    IrExpressionBody
+      BLOCK type=<no-type> hasResult=false operator=null
+        RETURN type=<no-type>
+          GET_PROPERTY .a type=kotlin.Int operator=null
+  IrFunction public fun test4(): Z.Companion
+    IrExpressionBody
+      BLOCK type=<no-type> hasResult=false operator=null
+        RETURN type=<no-type>
+          GET_OBJECT Companion type=Z.Companion

compiler/testData/ir/irText/when.kt

@@ -0,0 +1,10 @@
+object A
+
+fun test(x: Any?) =
+        when (x) {
+            null -> "null"
+            A -> "A"
+            is String -> "String"
+            in setOf<Nothing>() -> "nothingness?"
+            else -> "something"
+        }

compiler/testData/ir/irText/when.txt

@@ -0,0 +1,26 @@
+IrFile /when.kt
+  DUMMY A
+  IrFunction public fun test(/*0*/ x: kotlin.Any?): kotlin.String
+    IrExpressionBody
+      BLOCK type=<no-type> hasResult=false operator=null
+        RETURN type=<no-type>
+          WHEN subject=tmp0_subject type=kotlin.String
+            $subject:: VAR val tmp0_subject: kotlin.Any?
+              GET_VAR x type=kotlin.Any? operator=null
+            if: BINARY_OP operator=EQEQ type=kotlin.Boolean related=null
+              GET_VAR tmp0_subject type=kotlin.Any? operator=null
+              LITERAL Null type=kotlin.Nothing? value='null'
+            then: LITERAL String type=kotlin.String value='null'
+            if: BINARY_OP operator=EQEQ type=kotlin.Boolean related=null
+              GET_VAR tmp0_subject type=kotlin.Any? operator=null
+              GET_OBJECT A type=A
+            then: LITERAL String type=kotlin.String value='A'
+            if: TYPE_OP operator=INSTANCEOF typeOperand=kotlin.String
+              GET_VAR tmp0_subject type=kotlin.Any? operator=null
+            then: LITERAL String type=kotlin.String value='String'
+            if: CALL .contains type=kotlin.Boolean operator=IN
+              $receiver: CALL .setOf type=kotlin.collections.Set<kotlin.Nothing> operator=null
+              element: TYPE_OP operator=IMPLICIT_CAST typeOperand=kotlin.Any
+                GET_VAR tmp0_subject type=kotlin.Any? operator=null
+            then: LITERAL String type=kotlin.String value='nothingness?'
+            else: LITERAL String type=kotlin.String value='something'