Add qmlStringT to qmlExpr

Fix highlighting problems in ternary expressions

Author: mirukana

syntax/qml.vim

@@ -1,3 +1,4 @@
+
 " Vim syntax file
 " Language:     QML
 " Maintainer:   Peter Hoeg <peter@hoeg.com>
@@ -27,7 +28,7 @@ endif
 
 syn case ignore
 
-syn cluster qmlExpr              contains=qmlStringD,qmlStringS,SqmlCharacter,qmlNumber,qmlObjectLiteralType,qmlBoolean,qmlType,qmlJsType,qmlNull,qmlGlobal,qmlFunction,qmlArrowFunction
+syn cluster qmlExpr              contains=qmlStringD,qmlStringS,qmlStringT,SqmlCharacter,qmlNumber,qmlObjectLiteralType,qmlBoolean,qmlType,qmlJsType,qmlNull,qmlGlobal,qmlFunction,qmlArrowFunction
 syn keyword qmlCommentTodo       TODO FIXME XXX TBD contained
 syn match   qmlLineComment       "\/\/.*" contains=@Spell,qmlCommentTodo
 syn match   qmlCommentSkip       "^[ \t]*\*\($\|[ \t]\+\)"