fix(codegen): preprocessModel -> map waiter errorType to shapeId if awsQueryError.code

[RanVaknin]

This is my most up-to-date attempt at fixing the awsQuery waiter error matcher issue.

In my code, I do 3 things:

1. Create a key-value store of awsQueryError codes to their corresponding error shape IDs. For example: "LoadBalancerNotFound": "com.amazonaws.elasticloadbalancingv2#LoadBalancerNotFoundException".
   This mapping is used to swap the error matcher.

2. Traverse down the waiter shapes in the model, moving through the acceptor array → matcher → error type. Once there, I perform the swap in the error matcher to use the correct shape ID.

3. Track modifications for efficiency to ensure only modified shapes are processed and replaced in the model.

Output:

When I print my changes, I get something promising:

Waitable trait for shape: com.amazonaws.elasticloadbalancingv2#DescribeLoadBalancers
{
    "LoadBalancerAvailable": {
        "acceptors": [
            {
                "state": "success",
                "matcher": {
                    "output": {
                        "path": "LoadBalancers[].State.Code",
                        "expected": "active",
                        "comparator": "allStringEquals"
                    }
                }
            },
            {
                "state": "retry",
                "matcher": {
                    "output": {
                        "path": "LoadBalancers[].State.Code",
                        "expected": "provisioning",
                        "comparator": "anyStringEquals"
                    }
                }
            },
            {
                "state": "retry",
                "matcher": {
                    "errorType": "com.amazonaws.elasticloadbalancingv2#LoadBalancerNotFoundException"
                }
            }
        ],
        "minDelay": 15
    },
"LoadBalancerExists": {...

Issue

When I regenerate the client I see a build error:

Projection elastic-load-balancing-v2.2015-12-01 failed: software.amazon.smithy.model.node.ExpectationNotMetException: Expected shape `com.amazonaws.elasticloadbalancingv2#DescribeLoadBalancers` to have a trait `software.amazon.smithy.waiters.WaitableTrait` (/local/home/rvaknin/workplace/ran/aws-sdk-js-v3/scripts/generate-clients/.aws-models/elastic-load-balancing-v2/elastic-load-balancing-v2.json [2527, 67])
software.amazon.smithy.model.node.ExpectationNotMetException: Expected shape `com.amazonaws.elasticloadbalancingv2#DescribeLoadBalancers` to have a trait `software.amazon.smithy.waiters.WaitableTrait` (/local/home/rvaknin/workplace/ran/aws-sdk-js-v3/scripts/generate-clients/.aws-models/elastic-load-balancing-v2/elastic-load-balancing-v2.json [2527, 67])
	at software.amazon.smithy.model.shapes.Shape.lambda$expectTrait$0(Shape.java:332)
	at java.base/java.util.Optional.orElseThrow(Optional.java:403)
	at software.amazon.smithy.model.shapes.Shape.expectTrait(Shape.java:332)
	at software.amazon.smithy.typescript.codegen.DirectedTypeScriptCodegen.generateClient(DirectedTypeScriptCodegen.java:273)
	at software.amazon.smithy.typescript.codegen.DirectedTypeScriptCodegen.generateService(DirectedTypeScriptCodegen.java:176)
	at software.amazon.smithy.codegen.core.directed.CodegenDirector.run(CodegenDirector.java:368)
	at software.amazon.smithy.typescript.codegen.TypeScriptClientCodegenPlugin.execute(TypeScriptClientCodegenPlugin.java:74)
	at software.amazon.smithy.build.SmithyBuildImpl.applyPlugin(SmithyBuildImpl.java:432)
	at software.amazon.smithy.build.SmithyBuildImpl.applyProjection(SmithyBuildImpl.java:364)
	at software.amazon.smithy.build.SmithyBuildImpl.executeSerialProjection(SmithyBuildImpl.java:281)
	at software.amazon.smithy.build.SmithyBuildImpl.lambda$applyAllProjections$4(SmithyBuildImpl.java:201)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
	at java.base/java.util.stream.ForEachOps$ForEachTask.compute(ForEachOps.java:290)
	at java.base/java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:754)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)

I also tried changing the mapping from the full shape ID (e.g., "com.amazonaws.elasticloadbalancingv2#LoadBalancerNotFoundException") to just the shape name (e.g., "LoadBalancerNotFoundException"). but that didn't solve the issue.

I suspect I might not be using DynamicTrait correctly.

[kuhe]

We will review collaboratively.