these two options need also to be stable

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/PythonOptions.java

@@ -45,7 +45,7 @@ private PythonOptions() {
     @Option(category = OptionCategory.USER, help = "Set the location of sys.prefix. Overrides any environment variables or Java options.", stability = OptionStability.STABLE) //
     public static final OptionKey<String> SysPrefix = new OptionKey<>("");
 
-    @Option(category = OptionCategory.EXPERT, help = "Set the location of sys.base_prefix. Overrides any environment variables or Java options.") //
+    @Option(category = OptionCategory.EXPERT, help = "Set the location of sys.base_prefix. Overrides any environment variables or Java options.", stability = OptionStability.STABLE) //
     public static final OptionKey<String> SysBasePrefix = new OptionKey<>("");
 
     @Option(category = OptionCategory.USER, help = "Set the location of lib-graalpython. Overrides any environment variables or Java options.", stability = OptionStability.STABLE) //
@@ -85,7 +85,7 @@ private PythonOptions() {
     @Option(category = OptionCategory.USER, help = "Equivalent to the Python -v flag. Turn on verbose mode.", stability = OptionStability.STABLE) //
     public static final OptionKey<Boolean> VerboseFlag = new OptionKey<>(false);
 
-    @Option(category = OptionCategory.USER, help = "Equivalent to the Python -u flag. Force stdout and stderr to be unbuffered.") //
+    @Option(category = OptionCategory.USER, help = "Equivalent to the Python -u flag. Force stdout and stderr to be unbuffered.", stability = OptionStability.STABLE) //
     public static final OptionKey<Boolean> UnbufferedIO = new OptionKey<>(false);
 
     @Option(category = OptionCategory.INTERNAL, help = "Expose internal sources as normal sources, so they will show up in the debugger and stacks") //