Commits on Aug 3, 2023

1. Optimize ecovec![] macro …

   LLVM is not smart enough to eliminate calls to `EcoVec::reserve()` even when
   they are unecessary thanks to earlier calls to `EcoVec::reserve()` or
   `EcoVec::with_capacity()`. This patch elimates them when the `ecovec![]` macro
   is used. There may be other unnecessary calls which can be elimated in future
   patches.
   
   `ecovec![1, 2, 3]` results in 3 unecessary calls to `EcoVec::reserve()`. Fixed
   by forwarding to the `From<[T; N]>` impl.
   
   `ecovec![1; 42]` results in 42 unecessary calls to `EcoVec::reserve()`. Fixed by
   adding `EcoVec::push_unchecked()` function for when we know resizing is
   unnecessary.

   

   Kmeakin committed Aug 3, 2023
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