from review: improve method name

Co-authored-by: bjorn3 <bjorn3@users.noreply.github.com>

Author: the8472

Diff for: library/alloc/src/vec/mod.rs

@@ -2637,7 +2637,7 @@ impl<T, A: Allocator> Vec<T, A> {
     /// The bound `I: TrustedLen` ensures that the caller can safely know
     /// how much needs to be allocated.
     #[cfg(not(no_global_oom_handling))]
-    unsafe fn extend_prealloc_trustedlen<I: TrustedLen<Item = T>>(&mut self, iterator: I) {
+    unsafe fn extend_prealloc_trusted_len<I: TrustedLen<Item = T>>(&mut self, iterator: I) {
         unsafe {
             let mut ptr = self.as_mut_ptr().add(self.len());
             let mut local_len = SetLenOnDrop::new(&mut self.len);

Diff for: library/alloc/src/vec/spec_extend.rs

@@ -36,7 +36,7 @@ where
             // Safety: We rely on the TrustedLen contract to know how much capacity needs to be
             // reserved. And we reserved at least that amount above.
             unsafe {
-                self.extend_prealloc_trustedlen(iterator);
+                self.extend_prealloc_trusted_len(iterator);
             }
         } else {
             // Per TrustedLen contract a `None` upper bound means that the iterator length

Diff for: library/alloc/src/vec/spec_from_iter_nested.rs

@@ -55,7 +55,7 @@ where
         // Safety: The TrustedLen contract together with the `with_capacity`
         // above guarantee that no further allocations should be needed to collect the iterator
         unsafe {
-            vector.extend_prealloc_trustedlen(iterator);
+            vector.extend_prealloc_trusted_len(iterator);
         }
         vector
     }