0.16.3 step 2: rustfmt fix

CI Format step rejected the multi-line `caller_fn_collector` let-
binding and a stray blank line in `types.rs`. Auto-applied `cargo
fmt --all`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: jasisz

src/codegen/wasm_gc/module.rs

@@ -48,8 +48,7 @@ pub(super) fn emit_module(
     // post-emit phase reads `collector.names` to materialise the
     // exported caller-fn name table (`__caller_fn_count` +
     // `__caller_fn_name`) and the matching passive data segments.
-    let caller_fn_collector =
-        std::cell::RefCell::new(super::body::CallerFnCollector::default());
+    let caller_fn_collector = std::cell::RefCell::new(super::body::CallerFnCollector::default());
 
     let fn_defs: Vec<&FnDef> = items
         .iter()

src/codegen/wasm_gc/types.rs

@@ -2003,7 +2003,6 @@ fn fn_body_calls_int_mod(fd: &crate::ast::FnDef) -> bool {
     })
 }
 
-
 fn collect_string_literals_in_fn(
     fd: &crate::ast::FnDef,
     out: &mut Vec<Vec<u8>>,