Add migration guide for CelValue -> cel::Value.

Closes #1520

PiperOrigin-RevId: 947764914

Author: jnthntatum

codelab/BUILD

@@ -44,18 +44,22 @@ cc_library(
         "nobuilder",
     ],
     deps = [
-        "//eval/public:activation",
-        "//eval/public:builtin_func_registrar",
-        "//eval/public:cel_expr_builder_factory",
-        "//eval/public:cel_expression",
-        "//eval/public:cel_options",
-        "//eval/public:cel_value",
+        "//checker:validation_result",
+        "//common:ast",
+        "//common:minimal_descriptor_pool",
+        "//common:value",
+        "//compiler",
+        "//compiler:compiler_factory",
+        "//compiler:standard_library",
         "//internal:status_macros",
-        "//parser",
+        "//runtime",
+        "//runtime:activation",
+        "//runtime:runtime_builder",
+        "//runtime:runtime_options",
+        "//runtime:standard_runtime_builder_factory",
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
         "@com_google_absl//absl/strings",
-        "@com_google_cel_spec//proto/cel/expr:syntax_cc_proto",
         "@com_google_protobuf//:protobuf",
     ],
 )
@@ -76,22 +80,25 @@ cc_library(
     srcs = ["exercise2.cc"],
     hdrs = ["exercise2.h"],
     deps = [
-        ":cel_compiler",
+        "//checker:type_checker_builder",
+        "//checker:validation_result",
+        "//common:ast",
+        "//common:decl",
+        "//common:type",
+        "//common:value",
         "//compiler",
         "//compiler:compiler_factory",
         "//compiler:standard_library",
-        "//eval/public:activation",
-        "//eval/public:builtin_func_registrar",
-        "//eval/public:cel_expr_builder_factory",
-        "//eval/public:cel_expression",
-        "//eval/public:cel_options",
-        "//eval/public:cel_value",
         "//internal:status_macros",
+        "//runtime",
+        "//runtime:activation",
+        "//runtime:bind_proto_to_activation",
+        "//runtime:runtime_builder",
+        "//runtime:runtime_options",
+        "//runtime:standard_runtime_builder_factory",
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
         "@com_google_absl//absl/strings",
-        "@com_google_cel_spec//proto/cel/expr:checked_cc_proto",
-        "@com_google_cel_spec//proto/cel/expr:syntax_cc_proto",
         "@com_google_googleapis//google/rpc/context:attribute_context_cc_proto",
         "@com_google_protobuf//:protobuf",
     ],
@@ -125,42 +132,30 @@ cc_test(
 )
 
 cc_library(
-    name = "cel_compiler",
-    hdrs = ["cel_compiler.h"],
+    name = "checked_expr_conversion_example",
+    hdrs = ["checked_expr_conversion_example.h"],
     deps = [
-        "//checker:validation_result",
+        "//common:ast",
         "//common:ast_proto",
-        "//compiler",
         "//internal:status_macros",
-        "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
-        "@com_google_absl//absl/strings",
         "@com_google_cel_spec//proto/cel/expr:checked_cc_proto",
     ],
 )
 
 cc_test(
-    name = "cel_compiler_test",
-    srcs = ["cel_compiler_test.cc"],
+    name = "checked_expr_conversion_example_test",
+    srcs = ["checked_expr_conversion_example_test.cc"],
     deps = [
-        ":cel_compiler",
-        "//common:decl",
-        "//common:type",
+        ":checked_expr_conversion_example",
+        "//checker:validation_result",
+        "//common:ast",
         "//compiler",
         "//compiler:compiler_factory",
         "//compiler:standard_library",
-        "//eval/public:activation",
-        "//eval/public:activation_bind_helper",
-        "//eval/public:builtin_func_registrar",
-        "//eval/public:cel_expr_builder_factory",
-        "//eval/public:cel_function_adapter",
-        "//eval/public:cel_value",
-        "//eval/public/testing:matchers",
         "//internal:testing",
-        "@com_google_absl//absl/log:absl_check",
-        "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:status_matchers",
-        "@com_google_googleapis//google/rpc/context:attribute_context_cc_proto",
+        "@com_google_cel_spec//proto/cel/expr:checked_cc_proto",
         "@com_google_protobuf//:protobuf",
     ],
 )
@@ -170,22 +165,27 @@ cc_library(
     srcs = ["exercise4.cc"],
     hdrs = ["exercise4.h"],
     deps = [
-        ":cel_compiler",
+        "//checker:type_checker_builder",
+        "//checker:validation_result",
+        "//common:ast",
+        "//common:decl",
+        "//common:type",
+        "//common:value",
         "//compiler",
         "//compiler:compiler_factory",
         "//compiler:standard_library",
-        "//eval/public:activation",
-        "//eval/public:activation_bind_helper",
-        "//eval/public:builtin_func_registrar",
-        "//eval/public:cel_expr_builder_factory",
-        "//eval/public:cel_expression",
-        "//eval/public:cel_options",
-        "//eval/public:cel_value",
         "//internal:status_macros",
+        "//runtime",
+        "//runtime:activation",
+        "//runtime:bind_proto_to_activation",
+        "//runtime:function_adapter",
+        "//runtime:runtime_builder",
+        "//runtime:runtime_options",
+        "//runtime:standard_runtime_builder_factory",
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
         "@com_google_absl//absl/strings",
-        "@com_google_cel_spec//proto/cel/expr:checked_cc_proto",
+        "@com_google_absl//absl/types:optional",
         "@com_google_googleapis//google/rpc/context:attribute_context_cc_proto",
         "@com_google_protobuf//:protobuf",
     ],
@@ -270,13 +270,15 @@ cc_library(
     deps = [
         ":network_functions",
         "//checker:validation_result",
+        "//common:ast",
         "//common:decl",
         "//common:minimal_descriptor_pool",
         "//common:type",
         "//common:value",
         "//compiler",
         "//compiler:compiler_factory",
         "//compiler:standard_library",
+        "//internal:status_macros",
         "//runtime",
         "//runtime:activation",
         "//runtime:runtime_builder",