fix(parser): Stage-B NEWLINE handling and test file corrections

**Stage-B Parser Improvements:**
- Add NEWLINE skipping before/after LOCAL keyword (variables.rs)
- Add NEWLINE skipping after '{' in block statements (mod.rs)
- Add safety valve for statement keywords in static_box.rs

**Test File Fixes:**
- Fix collect_empty_args_smoke.hako: static box → box (allow instantiation)
- Fix method calls: index_of_from() → me.index_of_from() (explicit receiver)

**Context:**
These changes support the PHI UseBeforeDef bug investigation and improve
Stage-B parser robustness for NEWLINE handling in method bodies.

**Test Results:**
✅ collect_prints() loop break handling verified
✅ ArrayBox.length() working correctly (after user fix)
✅ All existing loop smoke tests passing (loop_min_while, nested_loop_inner_break, etc.)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/parser/declarations/static_box.rs

@@ -69,6 +69,20 @@ impl NyashParser {
                 self, &mut init_fields, &mut weak_fields,
             )? { continue; }
 
+            // 🔧 Safety valve: if we encounter statement keywords (LOCAL, RETURN, etc.) at member level,
+            // it means we've likely exited a method body prematurely. Break to close the static box.
+            match self.current_token().token_type {
+                TokenType::LOCAL | TokenType::RETURN | TokenType::IF | TokenType::LOOP |
+                TokenType::BREAK | TokenType::CONTINUE | TokenType::PRINT => {
+                    if std::env::var("NYASH_CLI_VERBOSE").ok().as_deref() == Some("1") {
+                        eprintln!("[parser][static-box][safety] encountered statement keyword {:?} at member level (line {}); assuming premature method body exit",
+                                 self.current_token().token_type, self.current_token().line);
+                    }
+                    break;
+                }
+                _ => {}
+            }
+
             if let TokenType::IDENTIFIER(field_or_method) = &self.current_token().token_type {
                 let field_or_method = field_or_method.clone();
                 self.advance();