Auto merge of #4539 - jolson88:cast-lossless-pedantic, r=flip1995

Changes cast-lossless to a pedantic lint

As discussed in #4528, this moves the cast-lossless lint from `all` to `pedantic`.

I couldn't tell from description alone if it should also be removed from the complexity category, so I left it as part of complexity for now. I didn't see any impact to the tests from this change, but I could be wrong (as this is my first PR).

fixes #4528

changelog: Moves cast-lossless from default to checking only as a `pedantic` lint.

clippy_lints/src/lib.rs

@@ -667,6 +667,7 @@ pub fn register_plugins(reg: &mut rustc_driver::plugin::Registry<'_>, conf: &Con
         shadow::SHADOW_UNRELATED,
         strings::STRING_ADD_ASSIGN,
         trait_bounds::TYPE_REPETITION_IN_BOUNDS,
+        types::CAST_LOSSLESS,
         types::CAST_POSSIBLE_TRUNCATION,
         types::CAST_POSSIBLE_WRAP,
         types::CAST_PRECISION_LOSS,
@@ -891,7 +892,6 @@ pub fn register_plugins(reg: &mut rustc_driver::plugin::Registry<'_>, conf: &Con
         types::ABSURD_EXTREME_COMPARISONS,
         types::BORROWED_BOX,
         types::BOX_VEC,
-        types::CAST_LOSSLESS,
         types::CAST_PTR_ALIGNMENT,
         types::CAST_REF_TO_MUT,
         types::CHAR_LIT_AS_U8,
@@ -1074,7 +1074,6 @@ pub fn register_plugins(reg: &mut rustc_driver::plugin::Registry<'_>, conf: &Con
         transmute::TRANSMUTE_PTR_TO_REF,
         transmute::USELESS_TRANSMUTE,
         types::BORROWED_BOX,
-        types::CAST_LOSSLESS,
         types::CHAR_LIT_AS_U8,
         types::OPTION_OPTION,
         types::TYPE_COMPLEXITY,