gccrs: Move procedural macro test to their own directory

gccrs: Move procedural macro test to their own directory

gcc/testsuite/ChangeLog:

	* rust/compile/macros/proc/proc_macro.exp: New deja gnu file to execute
	proc-macro tests.
	* rust/compile/proc_macro_attribute_crate_type.rs: Move to...
	* rust/compile/macros/proc/attribute_crate_type.rs: ...here.
	* rust/compile/proc_macro_attribute_non_function.rs: Move to...
	* rust/compile/macros/proc/attribute_non_function.rs: ...here.
	* rust/compile/proc_macro_attribute_non_root_function.rs: Move to...
	* rust/compile/macros/proc/attribute_non_root_function.rs: ...here.
	* rust/compile/proc_macro_attribute_non_root_method.rs: Move to...
	* rust/compile/macros/proc/attribute_non_root_method.rs: ...here.
	* rust/compile/proc_macro_attribute_non_root_module.rs: Move to...
	* rust/compile/macros/proc/attribute_non_root_module.rs: ...here.
	* rust/compile/proc_macro_attribute_private.rs: Move to...
	* rust/compile/macros/proc/attribute_private.rs: ...here.
	* rust/compile/proc_macro_crate_type.rs: Move to...
	* rust/compile/macros/proc/crate_type.rs: ...here.
	* rust/compile/proc_macro_derive_crate_type.rs: Move to...
	* rust/compile/macros/proc/derive_crate_type.rs: ...here.
	* rust/compile/proc_macro_derive_malformed.rs: Move to...
	* rust/compile/macros/proc/derive_malformed.rs: ...here.
	* rust/compile/proc_macro_derive_non_function.rs: Move to...
	* rust/compile/macros/proc/derive_non_function.rs: ...here.
	* rust/compile/proc_macro_derive_non_root_function.rs: Move to...
	* rust/compile/macros/proc/derive_non_root_function.rs: ...here.
	* rust/compile/proc_macro_derive_non_root_module.rs: Move to...
	* rust/compile/macros/proc/derive_non_root_module.rs: ...here.
	* rust/compile/proc_macro_derive_private.rs: Move to...
	* rust/compile/macros/proc/derive_private.rs: ...here.
	* rust/compile/proc_macro_non_function.rs: Move to...
	* rust/compile/macros/proc/non_function.rs: ...here.
	* rust/compile/proc_macro_non_root_function.rs: Move to...
	* rust/compile/macros/proc/non_root_function.rs: ...here.
	* rust/compile/proc_macro_non_root_method.rs: Move to...
	* rust/compile/macros/proc/non_root_method.rs: ...here.
	* rust/compile/proc_macro_non_root_module.rs: Move to...
	* rust/compile/macros/proc/non_root_module.rs: ...here.
	* rust/compile/proc_macro_derive_non_root_method.rs: Move to...
	* rust/compile/macros/proc/non_root_trait_method.rs: ...here.
	* rust/compile/proc_macro_private.rs: Move to...
	* rust/compile/macros/proc/private.rs: ...here.
	* rust/compile/proc_macro_pub_function.rs: Move to...
	* rust/compile/macros/proc/pub_function.rs: ...here.
	* rust/compile/proc_macro_pub_module.rs: Move to...
	* rust/compile/macros/proc/pub_module.rs: ...here.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>