Be somewhat less conservative about declaring things global.

Author: cthulahoops

compiler/src/symboltable.rs

@@ -251,9 +251,12 @@ impl SymbolTableAnalyzer {
                     if found_in_outer_scope {
                         // Symbol is in some outer scope.
                         symbol.is_free = true;
-                    } else {
+                    } else if self.tables.is_empty() {
                         // Don't make assumptions when we don't know.
                         symbol.scope = SymbolScope::Unknown;
+                    } else {
+                        // If there are scopes above we can assume global.
+                        symbol.scope = SymbolScope::Global;
                     }
                 }
             }