Add service and operation names to HandlerExecutionContext

[syall]

Issue #, if available:

Resolves #933

Description of changes:

Add service and operation names to HandlerExecutionContext

Dependent on: #927

Testing:

Smithy context service and operation population

smithy-typescript-codegen-test: for the Weather service's CreateCity command, the following codegen diff is produced:

diff --color -Nur smithy-typescript-codegen-test/build_old/smithyprojections/smithy-typescript-codegen-test/client-experimental-identity-and-auth/typescript-codegen/src/commands/CreateCityCommand.ts smithy-typescript-codegen-test/build/smithyprojections/smithy-typescript-codegen-test/client-experimental-identity-and-auth/typescript-codegen/src/commands/CreateCityCommand.ts
--- smithy-typescript-codegen-test/build_old/smithyprojections/smithy-typescript-codegen-test/client-experimental-identity-and-auth/typescript-codegen/src/commands/CreateCityCommand.ts	2023-09-13 16:03:06
+++ smithy-typescript-codegen-test/build/smithyprojections/smithy-typescript-codegen-test/client-experimental-identity-and-auth/typescript-codegen/src/commands/CreateCityCommand.ts	2023-09-13 16:03:21
@@ -23,6 +23,7 @@
   Handler,
   HandlerExecutionContext,
   MiddlewareStack,
+  SMITHY_CONTEXT_KEY,
   HttpHandlerOptions as __HttpHandlerOptions,
   MetadataBearer as __MetadataBearer,
   SerdeContext as __SerdeContext,
@@ -81,6 +82,10 @@
         (_: any) => _,
       outputFilterSensitiveLog:
         (_: any) => _,
+      [SMITHY_CONTEXT_KEY]: {
+        service: "Weather",
+        operation: "CreateCity",
+      },
     }
     const { requestHandler } = configuration;
     return stack.resolve(

experimentalIdentityAndAuth: HttpAuthSchemeParametersProvider update

diff --color -Nur /Users/yuasteve/development/ts-ia/smithy-typescript/smithy-typescript-codegen-test/build_old/smithyprojections/smithy-typescript-codegen-test/client-experimental-identity-and-auth/typescript-codegen/src/auth/httpAuthSchemeProvider.ts /Users/yuasteve/development/ts-ia/smithy-typescript/smithy-typescript-codegen-test/build/smithyprojections/smithy-typescript-codegen-test/client-experimental-identity-and-auth/typescript-codegen/src/auth/httpAuthSchemeProvider.ts
--- /Users/yuasteve/development/ts-ia/smithy-typescript/smithy-typescript-codegen-test/build_old/smithyprojections/smithy-typescript-codegen-test/client-experimental-identity-and-auth/typescript-codegen/src/auth/httpAuthSchemeProvider.ts	2023-09-14 14:43:01
+++ /Users/yuasteve/development/ts-ia/smithy-typescript/smithy-typescript-codegen-test/build/smithyprojections/smithy-typescript-codegen-test/client-experimental-identity-and-auth/typescript-codegen/src/auth/httpAuthSchemeProvider.ts	2023-09-14 14:43:33
@@ -7,7 +7,10 @@
   HttpAuthSchemeParametersProvider,
   HttpAuthSchemeProvider,
 } from "@smithy/experimental-identity-and-auth";
-import { normalizeProvider } from "@smithy/util-middleware";
+import {
+  getSmithyContext,
+  normalizeProvider,
+} from "@smithy/util-middleware";
 
 /**
  * @internal
@@ -21,7 +24,7 @@
  */
 export const defaultWeatherHttpAuthSchemeParametersProvider: HttpAuthSchemeParametersProvider<WeatherClientResolvedConfig, WeatherHttpAuthSchemeParameters> = async (config, context) => {
   return {
-    operation: context.commandName,
+    operation: getSmithyContext(context).operation as string,
     region: await normalizeProvider(config.region)() || (() => {
       throw new Error("expected `region` to be configured for `aws.auth#sigv4`");
     })(),

If one or more of the packages in the /packages directory has been modified, be sure yarn changeset add has been run and its output has
been committed and included in this pull request. See CONTRIBUTING.md.

---

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