Auto merge of rust-lang#139213 - bjorn3:cg_clif_test_coretests, r=jieyouxu

Run coretests and alloctests with cg_clif in CI

Part of rust-lang/rustc_codegen_cranelift#1290

Author: bors

alloc/Cargo.toml

@@ -36,5 +36,4 @@ check-cfg = [
     'cfg(no_global_oom_handling)',
     'cfg(no_rc)',
     'cfg(no_sync)',
-    'cfg(randomized_layouts)',
 ]

coretests/Cargo.toml

@@ -12,6 +12,7 @@ edition = "2024"
 path = "lib.rs"
 test = false
 bench = false
+doc = false
 
 [[test]]
 name = "coretests"