Move #![crate_type] UI tests into attributes directory

Gets rid of two top-level UI tests which is always great.

Furthermore, move `need-crate-arg-ignore-tidy$x.rs`
from `command/` to `invalid-compile-flags/`.
`command/` concerns `std::process::Command` tests, not CLI tests.

Author: fmease

Diff for: tests/ui/invalid_crate_type_syntax.rs renamed to tests/ui/attributes/crate-type-delimited.rs

@@ -1,5 +1,5 @@
 error: malformed `crate_type` attribute input
-  --> $DIR/invalid_crate_type_syntax.rs:2:1
+  --> $DIR/crate-type-delimited.rs:2:1
    |
 LL | #![crate_type(lib)]
    | ^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![crate_type = "bin|lib|..."]`

Diff for: tests/ui/invalid_crate_type_syntax.stderr renamed to tests/ui/attributes/crate-type-delimited.stderr

@@ -1,5 +1,5 @@
 error: malformed `crate_type` attribute input
-  --> $DIR/no_crate_type.rs:2:1
+  --> $DIR/crate-type-empty.rs:2:1
    |
 LL | #![crate_type]
    | ^^^^^^^^^^^^^^ help: must be of the form: `#![crate_type = "bin|lib|..."]`

Diff for: tests/ui/no_crate_type.rs renamed to tests/ui/attributes/crate-type-empty.rs

@@ -1,5 +1,5 @@
 error: malformed `crate_type` attribute input
-  --> $DIR/invalid-crate-type-macro.rs:1:1
+  --> $DIR/crate-type-macro-call.rs:1:1
    |
 LL | #![crate_type = foo!()]
    | ^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![crate_type = "bin|lib|..."]`