[rules_swift] Stop generating compile info in ObjcProvider

Step 3 of 3-step plan:
1. Migrate the definitions.
2. Migrate the uses.
3. Delete old ObjcProvider definitions.

See bazelbuild/bazel#10674.

A couple extra notes:

- Also migrated a couple remaining uses in
  swift_clang_module_aspect.bzl.  Some Starlark rules still export a
  (empty) ObjcProvider but not a CcInfo, so we still need to handle
  that case.

- Use of "header" is not removed, because it still populates direct
  fields in ObjcProvider.

RELNOTES: None
PiperOrigin-RevId: 320402849

swift/internal/compiling.bzl

@@ -1766,22 +1766,18 @@ def find_swift_version_copt_value(copts):
 
 def new_objc_provider(
         deps,
-        include_path,
         link_inputs,
         linkopts,
         module_map,
         static_archives,
         swiftmodules,
-        defines = [],
         objc_header = None):
     """Creates an `apple_common.Objc` provider for a Swift target.
 
     Args:
         deps: The dependencies of the target being built, whose `Objc` providers
             will be passed to the new one in order to propagate the correct
             transitive fields.
-        include_path: A header search path that should be propagated to
-            dependents.
         link_inputs: Additional linker input files that should be propagated to
             dependents.
         linkopts: Linker options that should be propagated to dependents.
@@ -1791,8 +1787,6 @@ def new_objc_provider(
             archives (`.a` files) containing the target's compiled code.
         swiftmodules: A list (typically of one element) of the `.swiftmodule`
             files for the compiled target.
-        defines: A list of `defines` from the propagating `swift_library` that
-            should also be defined for `objc_library` targets that depend on it.
         objc_header: The generated Objective-C header for the Swift target. If
             `None`, no headers will be propagated. This header is only needed
             for Swift code that defines classes that should be exposed to
@@ -1826,10 +1820,6 @@ def new_objc_provider(
         order = "topological",
     )
 
-    if include_path:
-        objc_provider_args["include"] = depset(direct = [include_path])
-    if defines:
-        objc_provider_args["define"] = depset(direct = defines)
     if objc_header:
         objc_provider_args["header"] = depset(direct = [objc_header])
     if linkopts:

swift/internal/swift_clang_module_aspect.bzl

@@ -161,12 +161,12 @@ def _handle_cc_target(
     """
     attr = aspect_ctx.rule.attr
 
-    # TODO(b/142867898): Only check `CcInfo` once all native rules correctly
-    # propagate both.
+    # TODO(b/142867898): Only check `CcInfo` once all rules correctly propagate
+    # it.
     if CcInfo in target:
         compilation_context = target[CcInfo].compilation_context
     else:
-        compilation_context = target[apple_common.Objc].compilation_context
+        compilation_context = None
 
     if swift_infos:
         merged_swift_info = create_swift_info(swift_infos = swift_infos)
@@ -233,18 +233,9 @@ def _handle_cc_target(
             CcInfo(compilation_context = compilation_context),
         ]
         for dep in getattr(attr, "deps", []):
-            # TODO(b/142867898): Only check `CcInfo` once all native rules
-            # correctly propagate both.
             if CcInfo in dep:
-                dep_context = dep[CcInfo].compilation_context
-            elif apple_common.Objc in dep:
-                dep_context = dep[apple_common.Objc].compilation_context
-            else:
-                dep_context = None
-
-            if dep_context:
                 target_and_deps_cc_infos.append(
-                    CcInfo(compilation_context = dep_context),
+                    CcInfo(compilation_context = dep[CcInfo].compilation_context),
                 )
 
         compilation_context_to_compile = cc_common.merge_cc_infos(

swift/internal/swift_grpc_library.bzl

@@ -301,7 +301,6 @@ def _swift_grpc_library_impl(ctx):
     if swift_toolchain.supports_objc_interop:
         providers.append(new_objc_provider(
             deps = compile_deps,
-            include_path = ctx.bin_dir.path,
             link_inputs = compilation_outputs.linker_inputs,
             linkopts = compilation_outputs.linker_flags,
             module_map = compilation_outputs.generated_module_map,

swift/internal/swift_import.bzl

@@ -69,7 +69,6 @@ def _swift_import_impl(ctx):
         # ignored on non-Apple platforms anyway.
         new_objc_provider(
             deps = deps,
-            include_path = None,
             link_inputs = [],
             linkopts = [],
             module_map = None,

swift/internal/swift_library.bzl

@@ -253,13 +253,11 @@ def _swift_library_impl(ctx):
     # targets.
     if swift_toolchain.supports_objc_interop:
         providers.append(new_objc_provider(
-            defines = ctx.attr.defines,
             # We must include private_deps here because some of the information
             # propagated here is related to linking.
             # TODO(allevato): This means we can't yet completely avoid
             # propagating headers/module maps from impl-only Obj-C dependencies.
             deps = deps + private_deps,
-            include_path = ctx.bin_dir.path,
             link_inputs = compilation_outputs.linker_inputs + additional_inputs,
             linkopts = compilation_outputs.linker_flags + linkopts,
             module_map = compilation_outputs.generated_module_map,

swift/internal/swift_module_alias.bzl

@@ -123,7 +123,6 @@ def _swift_module_alias_impl(ctx):
     if swift_toolchain.supports_objc_interop:
         providers.append(new_objc_provider(
             deps = deps,
-            include_path = ctx.bin_dir.path,
             link_inputs = compilation_outputs.linker_inputs,
             linkopts = compilation_outputs.linker_flags,
             module_map = compilation_outputs.generated_module_map,

swift/internal/swift_protoc_gen_aspect.bzl

@@ -459,7 +459,6 @@ def _swift_protoc_gen_aspect_impl(target, aspect_ctx):
 
             includes = [aspect_ctx.bin_dir.path]
             objc_info = apple_common.new_objc_provider(
-                include = depset(includes),
                 providers = objc_infos,
                 uses_swift = True,
                 **objc_info_args