installer: Make @forced_properties non-global.

Change-Id: I42f1511126bcbda466cb956cbcac722b449bd9a5

solenv/bin/modules/installer/globals.pm

@@ -289,8 +289,6 @@ BEGIN
     %all_english_languagestrings = ();
     %all_required_english_languagestrings = ();
 
-    @forced_properties = ("SERVICETAG_PRODUCTNAME", "SERVICETAG_PRODUCTVERSION", "SERVICETAG_PARENTNAME", "SERVICETAG_SOURCE", "SERVICETAG_URN");
-
     @removedirs = ();
     @removefiletable = ();
 

solenv/bin/modules/installer/setupscript.pm

@@ -464,17 +464,25 @@ sub add_installationobject_to_variables
 
 #####################################################################################
 # Adding all variables, that must be defined, but are not defined until now.
-# List of this varibles: @installer::globals::forced_properties
 #####################################################################################
 
 sub add_forced_properties
 {
     my ($allvariables) = @_;
 
-    my $property;
-    foreach $property ( @installer::globals::forced_properties )
+    my @forced_properties = qw(
+        SERVICETAG_PRODUCTNAME
+        SERVICETAG_PRODUCTVERSION
+        SERVICETAG_PARENTNAME
+        SERVICETAG_SOURCE
+        SERVICETAG_URN
+    );
+
+    for my $property (@forced_properties)
     {
-        if ( ! exists($allvariables->{$property}) ) { $allvariables->{$property} = ""; }
+        if ( ! exists($allvariables->{$property}) ) {
+            $allvariables->{$property} = "";
+        }
     }
 }