Fix hFlushExprStatic() to use full type again (regression from 616dc23)

I can't think of a test case for this though, CONSTness should have been
checked before already, it shouldn't matter here when emitting.
Also the full type is only used for an astNewCONV() which allows casting
away CONSTness etc. anyways.

Author: dkl

src/compiler/ast-node-typeini.bas

@@ -524,7 +524,7 @@ private sub hFlushExprStatic( byval n as ASTNODE ptr, byval basesym as FBSYMBOL
 	end if
 
 	var sdtype = symbGetType( sym )
-	var sfulldtype = symbGetType( sym )
+	var sfulldtype = symbGetFullType( sym )
 	if( symbIsRef( sym ) ) then
 		'' Initializers for references initialize the pointer,
 		'' not an object of the symbol's type.