Rollup merge of #147322 - Zalathar:llvm-imports, r=jdonszelmann

cg_llvm: Consistently import `llvm::Type` and `llvm::Value`

We already have other modules that import these types and other types from `llvm`, so having the re-exports `type_::Type` and `value::Value` just distracts rust-analyzer and results in messier and less-consistent imports.

No functional change.

compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs

@@ -6,7 +6,7 @@ use rustc_span::InnerSpan;
 pub(crate) use self::Diagnostic::*;
 use self::OptimizationDiagnosticKind::*;
 use super::{DiagnosticInfo, SMDiagnostic};
-use crate::value::Value;
+use crate::llvm::Value;
 
 #[derive(Copy, Clone, Debug)]
 pub(crate) enum OptimizationDiagnosticKind {