Support for the with statement

Add the with object (list) to the environment, and check properties
there if it's available.
Generate IR statements implementing with() support.
Add two new builtin methods to enter and leave a with scope.
Implement support for the builtin's in masm.
Make sure exception handling works across with scopes.

Change-Id: I8257a16cfccc91a1acedfd740ade711b016b33fd
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/qmljs_engine.h b/qmljs_engine.h
index 5460412576..8d5662783a 100644
--- a/qmljs_engine.h
+++ b/qmljs_engine.h
@@ -131,6 +131,7 @@ struct ExecutionEngine
 
     struct ExceptionHandler {
         ExecutionContext *context;
+        DeclarativeEnvironment::With *with;
         const uchar *code; // Interpreter state
         int targetTempIndex; // Interpreter state
         jmp_buf stackFrame;