Rename TypeDeterminer to Resolver

Move out of the src root and into its own subdirectory
Rename methods to remove the 'Determine' prefix.

Fixed: tint:529
Change-Id: Idf89d647780f8a2e7495c1c9e6c402e00ad45b7c
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/44041
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>

src/transform/first_index_offset.cc

@@ -53,7 +53,6 @@
 #include "src/semantic/function.h"
 #include "src/type/struct_type.h"
 #include "src/type/u32_type.h"
-#include "src/type_determiner.h"
 
 TINT_INSTANTIATE_TYPEINFO(tint::transform::FirstIndexOffset::Data);
 

src/transform/manager.cc

@@ -15,7 +15,6 @@
 #include "src/transform/manager.h"
 
 #include "src/program_builder.h"
-#include "src/type_determiner.h"
 
 namespace tint {
 namespace transform {

src/transform/test_helper.h

@@ -25,7 +25,6 @@
 #include "src/program_builder.h"
 #include "src/reader/wgsl/parser.h"
 #include "src/transform/manager.h"
-#include "src/type_determiner.h"
 #include "src/writer/wgsl/generator.h"
 
 namespace tint {