Fix dependencies in xls/public

Also looks like c_api.cc does not depend on c_api_vast.h
anymore.

Author: hzeller

xls/public/BUILD

@@ -217,7 +217,6 @@ cc_library(
         "//xls/dslx:import_data",
         "//xls/dslx:interp_value",
         "//xls/dslx:interp_value_from_string",
-        "//xls/dslx:interp_value_utils",
         "//xls/dslx:parse_and_typecheck",
         "//xls/dslx:replace_invocations",
         "//xls/dslx:virtualizable_file_system",
@@ -235,6 +234,8 @@ cc_library(
         "@com_google_absl//absl/log:check",
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
+        "@com_google_absl//absl/types:span",
+        "@com_google_absl//absl/types:variant",
     ],
 )
 
@@ -263,7 +264,6 @@ cc_library(
         ":c_api_format_preference",
         ":c_api_impl_helpers",
         ":c_api_ir_builder",
-        ":c_api_vast",
         ":runtime_build_actions",
         "//xls/common:init_xls",
         "//xls/common/file:filesystem",

xls/public/c_api.cc

@@ -55,7 +55,6 @@
 #include "xls/jit/function_jit.h"
 #include "xls/public/c_api_format_preference.h"
 #include "xls/public/c_api_impl_helpers.h"
-#include "xls/public/c_api_vast.h"
 #include "xls/public/runtime_build_actions.h"
 #include "xls/solvers/z3_ir_translator.h"
 #include "xls/tools/codegen_flags.pb.h"

xls/public/c_api.h

@@ -21,7 +21,6 @@
 #include "xls/public/c_api_dslx.h"
 #include "xls/public/c_api_format_preference.h"
 #include "xls/public/c_api_ir_builder.h"
-#include "xls/public/c_api_vast.h"
 
 // C API that exposes the functionality in various public headers in a way that
 // C-based FFI facilities can easily wrap.

xls/public/c_api_dslx.cc

@@ -24,7 +24,9 @@
 #include <variant>
 #include <vector>
 
+#include "absl/types/variant.h"
 #include "absl/container/flat_hash_map.h"
+#include "absl/types/span.h"
 #include "absl/log/check.h"
 #include "absl/status/status.h"
 #include "absl/status/statusor.h"