Refactored reference shortening utility (added expression references shortening and rewritten to Kotlin)

idea/testData/shortenRefs/constructor/Ambiguous.kt

@@ -0,0 +1,3 @@
+class A {
+    val x = <selection>java.io.File()</selection>
+}

idea/testData/shortenRefs/constructor/Ambiguous.kt.after

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+import java.io.File
+
+class A {
+    val x = File()
+}

idea/testData/shortenRefs/constructor/GenericType.kt

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+class A {
+    val x = <selection>java.util.HashMap<java.util.ArrayList<java.io.File>, String>()</selection>
+}

idea/testData/shortenRefs/constructor/GenericType.kt.after

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+import java.util.HashMap
+import java.util.ArrayList
+import java.io.File
+
+class A {
+    val x = HashMap<ArrayList<File>, String>()
+}

idea/testData/shortenRefs/constructor/LeaveQualified.kt

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+import java.util.Date
+
+val x = <selection>java.sql.Date(1)</selection>

idea/testData/shortenRefs/constructor/LeaveQualified.kt.after

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+import java.util.Date
+import java.sql
+
+val x = sql.Date(1)

idea/testData/shortenRefs/constructor/LeaveQualified1.kt

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+fun File(): String = ""
+
+class A {
+    val x = <selection>java.io.File()</selection>
+}

idea/testData/shortenRefs/constructor/LeaveQualified1.kt.after

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+fun File(): String = ""
+
+class A {
+    val x = java.io.File()
+}

idea/testData/shortenRefs/constructor/LeaveQualified2.kt

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+fun Random(): Int = 1
+
+class A {
+    val x = <selection>java.util.Random()</selection>
+}

idea/testData/shortenRefs/constructor/LeaveQualified2.kt.after

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+fun Random(): Int = 1
+
+class A {
+    val x = java.util.Random()
+}

idea/testData/shortenRefs/constructor/LeaveQualified3.kt

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+fun foo(){
+    val Random = {}
+    val x = <selection>java.util.Random()</selection>
+}

idea/testData/shortenRefs/constructor/LeaveQualified3.kt.after

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+fun foo(){
+    val Random = {}
+    val x = java.util.Random()
+}

idea/testData/shortenRefs/constructor/LeaveQualified4.kt.after

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+import java.util.Random
+
+fun foo(){
+    val Random = 1
+    val x = Random()
+}

idea/testData/shortenRefs/constructor/LeaveQualified4.kt.todo

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+fun foo(){
+    val Random = 1
+    val x = <selection>java.util.Random()</selection>
+}

idea/testData/shortenRefs/constructor/LeaveQualified5.kt

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+fun File(p: Int): String = ""
+fun File(p: String): String = ""
+
+class A {
+    val x = <selection>java.io.File()</selection>
+}

idea/testData/shortenRefs/constructor/LeaveQualified5.kt.after

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+fun File(p: Int): String = ""
+fun File(p: String): String = ""
+
+class A {
+    val x = java.io.File()
+}

idea/testData/shortenRefs/constructor/NestedClass.kt

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+val x = <selection>java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock()</selection>

idea/testData/shortenRefs/constructor/NestedClass.kt.after

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+import java.util.concurrent.locks.ReentrantReadWriteLock
+
+val x = ReentrantReadWriteLock.WriteLock()

idea/testData/shortenRefs/constructor/NoImportNeeded.kt

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+import java.io.File
+
+val f = <selection>java.io.File()</selection>

idea/testData/shortenRefs/constructor/NoImportNeeded.kt.after

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+import java.io.File
+
+val f = File()

idea/testData/shortenRefs/constructor/NoImportNeeded2.kt

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+package java.io
+
+val f = <selection>java.io.File()</selection>

idea/testData/shortenRefs/constructor/NoImportNeeded2.kt.after

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+package java.io
+
+val f = File()

idea/testData/shortenRefs/constructor/NoImportNeeded3.kt

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+import java.io.*
+
+val f = <selection>java.io.File()</selection>

idea/testData/shortenRefs/constructor/NoImportNeeded3.kt.after

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+import java.io.*
+
+val f = File()