v4: Enable primitive conversation to QQmlScriptString in javascript

This makes following QML-code proper working:

ParentChange {
  x: 0
  Component.onCompleted: x = 10
}

where x is a QQmlScriptString.

Before this patch an error-message would be thrown that the
bool/int/string/etc cannot be converted to a QQmlScriptString.

With the patch primitive types including null and undefined are
proper converted to a QQmlScriptString. The patch ignores (as
in not implements) function/binding assignment.

Unfortunately since commit aa25ad8d5f4 its not possible any
longer to instanciate QQmlScriptString what means there is
otherwise no (easy) way to inject a QQmlScriptString from
within Javascript.

Change-Id: I18aac6a6e9a57f3b7d0a2d66cdab2be6c3c153c5
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/tests/auto/qml/qqmllanguage/data/scriptStringJs.qml b/tests/auto/qml/qqmllanguage/data/scriptStringJs.qml
new file mode 100644
index 0000000000..bf6a8b9fbd
--- /dev/null
+++ b/tests/auto/qml/qqmllanguage/data/scriptStringJs.qml
@@ -0,0 +1,5 @@
+import Test 1.0
+
+MyTypeObject {
+    scriptProperty: " hello \" world "
+}