add word selection step for selecting a type parameter or type argument list with enclosing brackets

#KT-6697 Fixed

idea/src/org/jetbrains/kotlin/idea/editor/wordSelection/KotlinListSelectioner.kt

@@ -39,6 +39,11 @@ public class KotlinListSelectioner : ExtendWordSelectionHandlerBase() {
         val node = e.getNode()!!
         val startNode = node.findChildByType(TokenSet.create(JetTokens.LPAR, JetTokens.LT)) ?: return null
         val endNode = node.findChildByType(TokenSet.create(JetTokens.RPAR, JetTokens.GT)) ?: return null
-        return listOf(TextRange(startNode.getStartOffset() + 1, endNode.getStartOffset()))
+        val innerRange = TextRange(startNode.getStartOffset() + 1, endNode.getStartOffset())
+        if (e is JetTypeArgumentList || e is JetTypeParameterList) {
+            return listOf(innerRange,
+                          TextRange(startNode.getStartOffset(), endNode.getStartOffset() + endNode.getTextLength()))
+        }
+        return listOf(innerRange)
     }
 }

idea/testData/wordSelection/TypeArguments/2.kt

@@ -1,3 +1,3 @@
 fun <A, B> foo() {
-    <selection>foo<I<caret>nt, B>()</selection>
+    foo<selection><I<caret>nt, B></selection>()
 }

idea/testData/wordSelection/TypeArguments/3.kt

@@ -0,0 +1,3 @@
+fun <A, B> foo() {
+    <selection>foo<I<caret>nt, B>()</selection>
+}

idea/testData/wordSelection/TypeParameters/2.kt

@@ -1,3 +1,2 @@
-<selection>fun <A, <caret>B> foo() {
+fun <selection><A, <caret>B></selection> foo() {
 }
-</selection>

idea/testData/wordSelection/TypeParameters/3.kt

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