Disable optimization for removing unused context for debugging

Otherwise, we can’t access the outer lexical scope in the debugger, which is at the very least not nice. But, generally not desirable.

Signed-off-by: Stefan Marr <git@stefan-marr.de>

src/som/compiler/Parser.java

@@ -1037,7 +1037,7 @@ private ExpressionNode primary(final MethodBuilder builder) throws ProgramDefini
             AccessModifier.BLOCK_METHOD, lastMethodsSourceSection);
         builder.addEmbeddedBlockMethod(blockMethod);
 
-        if (bgenc.requiresContext()) {
+        if (bgenc.requiresContext() || VmSettings.TRUFFLE_DEBUGGER_ENABLED) {
           return new BlockNodeWithContext(blockMethod, lastMethodsSourceSection);
         } else {
           return new BlockNode(blockMethod, lastMethodsSourceSection);