Add inspection/intention for redundant calls of conversion methods #KT-10871 Fixed

Also #KT-12625 Fixed

idea/testData/intentions/removeRedundantCallsOfConversionMethods/.intention

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+org.jetbrains.kotlin.idea.intentions.RemoveRedundantCallsOfConversionMethodsIntention

idea/testData/intentions/removeRedundantCallsOfConversionMethods/byte.kt

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+// WITH_RUNTIME
+val foo = Byte.MAX_VALUE.toByte()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/byte.kt.after

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+// WITH_RUNTIME
+val foo = Byte.MAX_VALUE

idea/testData/intentions/removeRedundantCallsOfConversionMethods/char.kt

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+// WITH_RUNTIME
+val foo = 'a'.toChar()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/char.kt.after

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+// WITH_RUNTIME
+val foo = 'a'

idea/testData/intentions/removeRedundantCallsOfConversionMethods/double.kt

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+// WITH_RUNTIME
+val foo = 1.1.toDouble()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/double.kt.after

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+// WITH_RUNTIME
+val foo = 1.1

idea/testData/intentions/removeRedundantCallsOfConversionMethods/float.kt

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+// WITH_RUNTIME
+val foo = 1.1f.toFloat()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/float.kt.after

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+// WITH_RUNTIME
+val foo = 1.1f

idea/testData/intentions/removeRedundantCallsOfConversionMethods/int.kt

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+// WITH_RUNTIME
+val foo = 1.toInt()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/int.kt.after

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+// WITH_RUNTIME
+val foo = 1

idea/testData/intentions/removeRedundantCallsOfConversionMethods/list.kt

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+// WITH_RUNTIME
+val foo = listOf(1, 2, 3).toList()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/list.kt.after

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+// WITH_RUNTIME
+val foo = listOf(1, 2, 3)

idea/testData/intentions/removeRedundantCallsOfConversionMethods/list2.kt

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+// WITH_RUNTIME
+val foo = listOf(1, 2, 3).map(Int::toString).toList()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/list2.kt.after

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+// WITH_RUNTIME
+val foo = listOf(1, 2, 3).map(Int::toString)

idea/testData/intentions/removeRedundantCallsOfConversionMethods/long.kt

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+// WITH_RUNTIME
+val foo = Long.MAX_VALUE.toLong()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/long.kt.after

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+// WITH_RUNTIME
+val foo = Long.MAX_VALUE

idea/testData/intentions/removeRedundantCallsOfConversionMethods/mutableList.kt

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+// WITH_RUNTIME
+val foo = mutableListOf(1, 2, 3).toMutableList()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/mutableList.kt.after

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+// WITH_RUNTIME
+val foo = mutableListOf(1, 2, 3)

idea/testData/intentions/removeRedundantCallsOfConversionMethods/mutableSet.kt

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+// WITH_RUNTIME
+val foo = mutableSetOf(1, 2, 3).toMutableSet()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/mutableSet.kt.after

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+// WITH_RUNTIME
+val foo = mutableSetOf(1, 2, 3)

idea/testData/intentions/removeRedundantCallsOfConversionMethods/safeSortedMap.kt

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+// WITH_RUNTIME
+
+import java.util.SortedMap
+
+fun test() {
+    val foo: SortedMap<String, String>? = null
+    foo?.toSortedMap()<caret>
+}

idea/testData/intentions/removeRedundantCallsOfConversionMethods/safeSortedMap.kt.after

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+// WITH_RUNTIME
+
+import java.util.SortedMap
+
+fun test() {
+    val foo: SortedMap<String, String>? = null
+    foo
+}

idea/testData/intentions/removeRedundantCallsOfConversionMethods/safeString.kt

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+// WITH_RUNTIME
+
+fun test() {
+    val foo: String? = null
+    foo?.toString()<caret>
+}

idea/testData/intentions/removeRedundantCallsOfConversionMethods/safeString.kt.after

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+// WITH_RUNTIME
+
+fun test() {
+    val foo: String? = null
+    foo
+}

idea/testData/intentions/removeRedundantCallsOfConversionMethods/set.kt

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+// WITH_RUNTIME
+val foo = setOf(1, 2, 3).toSet()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/set.kt.after

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+// WITH_RUNTIME
+val foo = setOf(1, 2, 3)

idea/testData/intentions/removeRedundantCallsOfConversionMethods/short.kt

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+// WITH_RUNTIME
+val foo = Short.MAX_VALUE.toShort<caret>()

idea/testData/intentions/removeRedundantCallsOfConversionMethods/short.kt.after

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+// WITH_RUNTIME
+val foo = Short.MAX_VALUE

idea/testData/intentions/removeRedundantCallsOfConversionMethods/sortedMap.kt

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+// WITH_RUNTIME
+val foo = sortedMapOf(1 to 1).toSortedMap()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/sortedMap.kt.after

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+// WITH_RUNTIME
+val foo = sortedMapOf(1 to 1)

idea/testData/intentions/removeRedundantCallsOfConversionMethods/sortedSet.kt

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+// WITH_RUNTIME
+// sortedSetOf returns TreeSet not SortedSet
+val foo = sortedSetOf(1, 2, 3).toSortedSet().toSortedSet()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/sortedSet.kt.after

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+// WITH_RUNTIME
+// sortedSetOf returns TreeSet not SortedSet
+val foo = sortedSetOf(1, 2, 3).toSortedSet()

idea/testData/intentions/removeRedundantCallsOfConversionMethods/string.kt

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+// WITH_RUNTIME
+val foo = "".toString()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/string.kt.after

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+// WITH_RUNTIME
+val foo = ""

idea/testData/intentions/removeRedundantCallsOfConversionMethods/toOtherType.kt

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+// WITH_RUNTIME
+// IS_APPLICABLE: false
+val foo = 1.toLong()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/variable.kt

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+// WITH_RUNTIME
+val foo = ""
+val bar = foo.toString()<caret>

idea/testData/intentions/removeRedundantCallsOfConversionMethods/variable.kt.after

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+// WITH_RUNTIME
+val foo = ""
+val bar = foo