KT-5959 Imports should be inserted on paste from java with conversion to Kotlin

#KT-5959 Fixed

idea/testData/copyPaste/conversion/AddImports.expected.kt

@@ -0,0 +1,5 @@
+import java.io.File
+
+fun foo(file: File): List<String> {
+    return emptyList()
+}

idea/testData/copyPaste/conversion/AddImports.java

@@ -0,0 +1,9 @@
+import java.io.File;
+import java.util.Collections;
+import java.util.List;
+
+class C {
+<selection>    List<String> foo(File file) {
+        return Collections.emptyList();
+    }
+</selection>}

idea/testData/copyPaste/conversion/AddImports.to.kt

@@ -0,0 +1 @@
+<caret>

idea/testData/copyPaste/conversion/AddImportsButNoConversion.expected.kt

@@ -0,0 +1,3 @@
+import java.io.File
+
+fun foo(): List<File><caret>

idea/testData/copyPaste/conversion/AddImportsButNoConversion.java

@@ -0,0 +1,10 @@
+// NO_CONVERSION_EXPECTED
+import java.io.*;
+import java.util.Collections;
+import java.util.List;
+
+class C {
+    <selection>List<File></selection> foo() {
+        return Collections.emptyList();
+    }
+}

idea/testData/copyPaste/conversion/AddImportsButNoConversion.to.kt

@@ -0,0 +1 @@
+fun foo(): <caret>

idea/testData/copyPaste/conversion/AddImportsButNoConversion2.expected.kt

@@ -0,0 +1,5 @@
+import java.io.File
+
+fun foo() {
+    list.add(File.separatorChar)<caret>
+}

idea/testData/copyPaste/conversion/AddImportsButNoConversion2.java

@@ -0,0 +1,9 @@
+// NO_CONVERSION_EXPECTED
+import java.io.*;
+import java.util.*;
+
+class C {
+    void foo(List<Character> list) {
+        <selection>list.add(File.separatorChar)</selection>
+    }
+}

idea/testData/copyPaste/conversion/AddImportsButNoConversion2.to.kt

@@ -0,0 +1,3 @@
+fun foo() {
+    <caret>
+}

idea/testData/copyPaste/conversion/AddImportsClassInSamePackage.dependency.kt

@@ -0,0 +1,8 @@
+package ppp
+
+import kotlin.platform.platformStatic
+
+public object Dependency {
+    [platformStatic]
+    public val FIELD: Int = 1
+}

idea/testData/copyPaste/conversion/AddImportsClassInSamePackage.expected.kt

@@ -0,0 +1,5 @@
+import ppp.Dependency
+
+fun f() {
+    return Dependency.FIELD<caret>
+}

idea/testData/copyPaste/conversion/AddImportsClassInSamePackage.java

@@ -0,0 +1,7 @@
+package ppp
+
+class C {
+    char foo() {
+        <selection>return Dependency.FIELD;</selection>
+    }
+}

idea/testData/copyPaste/conversion/AddImportsClassInSamePackage.to.kt

@@ -0,0 +1,3 @@
+fun f() {
+    <caret>
+}

idea/testData/copyPaste/conversion/AddImportsDummyConflict.dependency.kt

@@ -0,0 +1,3 @@
+package ppp
+
+class dummy0

idea/testData/copyPaste/conversion/AddImportsDummyConflict.expected.kt

@@ -0,0 +1,5 @@
+import ppp.dummy0
+
+fun f() {
+    return dummy0()<caret>
+}

idea/testData/copyPaste/conversion/AddImportsDummyConflict.java

@@ -0,0 +1,7 @@
+import ppp.*
+
+class C {
+    dummy0 foo() {
+        <selection>return dummy0();</selection>
+    }
+}

idea/testData/copyPaste/conversion/AddImportsDummyConflict.to.kt

@@ -0,0 +1,3 @@
+fun f() {
+    <caret>
+}

idea/testData/copyPaste/conversion/Arithmetic.expected.kt

@@ -1 +1 @@
-No conversion performed
+val v = b - c + d

idea/testData/copyPaste/conversion/Arithmetic.java

@@ -1,3 +1,4 @@
+// NO_CONVERSION_EXPECTED
 public static void main(String[]args){
     a + <selection>b - c + d</selection> - e
 }

idea/testData/copyPaste/conversion/MethodReferenceWithoutQualifier.expected.kt

@@ -1 +1,4 @@
-No conversion performed
+fun main(args: Array<String>) {
+    reference(arg)
+    somethingElse()
+}

idea/testData/copyPaste/conversion/MethodReferenceWithoutQualifier.java

@@ -1,3 +1,4 @@
+// NO_CONVERSION_EXPECTED
 class A {
     public static void main(String[] args) {
         qualifier.<selection>reference(arg)</selection>;

idea/testData/copyPaste/conversion/OnlyClosingBrace.expected.kt

@@ -1 +1 @@
-No conversion performed
+}

idea/testData/copyPaste/conversion/OnlyClosingBrace.java

@@ -1,3 +1,4 @@
+// NO_CONVERSION_EXPECTED
 class A {
     public static void main(String[] args) {
         //sdasd

idea/testData/copyPaste/conversion/OnlyQualifier.expected.kt

@@ -1 +1,4 @@
-No conversion performed
+fun main(args: Array<String>) {
+    qualifier
+    somethingElse()
+}

idea/testData/copyPaste/conversion/OnlyQualifier.java

@@ -1,3 +1,4 @@
+// NO_CONVERSION_EXPECTED
 class A {
     public static void main(String[] args) {
         <selection>qualifier</selection>.reference(arg);

idea/testData/copyPaste/conversion/SingleWordFromIdentifier.expected.kt

@@ -1 +1 @@
-No conversion performed
+class Some

idea/testData/copyPaste/conversion/SingleWordFromIdentifier.java

@@ -1,3 +1,4 @@
+// NO_CONVERSION_EXPECTED
 <selection>class Some</selection>InterestingClass {
 
 }