Fix smart selection bug with TemplateTails (microsoft#33108)

Author: andrewbranch

src/services/smartSelection.ts

@@ -26,7 +26,7 @@ namespace ts.SmartSelectionRange {
                     //
                     // Dive in without pushing a selection range.
                     if (isBlock(node)
-                        || isTemplateSpan(node) || isTemplateHead(node)
+                        || isTemplateSpan(node) || isTemplateHead(node) || isTemplateTail(node)
                         || prevNode && isTemplateHead(prevNode)
                         || isVariableDeclarationList(node) && isVariableStatement(parentNode)
                         || isSyntaxList(node) && isVariableDeclarationList(parentNode)

tests/baselines/reference/smartSelection_templateStrings2.baseline

@@ -0,0 +1,4 @@
+`a ${b} /**/c`
+
+ a ${b} c 
+`a ${b} c`

tests/cases/fourslash/smartSelection_templateStrings2.ts

@@ -0,0 +1,5 @@
+/// <reference path="fourslash.ts" />
+
+////`a ${b} /**/c`
+
+verify.baselineSmartSelection();