Move type/* files to sem/ directory

Bug: tint:724
Change-Id: I45d83d32dbce1fbee265810615c18219ef879b20
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48363
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
diff --git a/src/reader/wgsl/parser_impl.h b/src/reader/wgsl/parser_impl.h
index 7c7a7e3..b15fd16 100644
--- a/src/reader/wgsl/parser_impl.h
+++ b/src/reader/wgsl/parser_impl.h
@@ -35,7 +35,7 @@
 #include "src/program_builder.h"
 #include "src/reader/wgsl/parser_impl_detail.h"
 #include "src/reader/wgsl/token.h"
-#include "src/type/storage_texture_type.h"
+#include "src/sem/storage_texture_type.h"
 
 namespace tint {
 namespace reader {