public Builder symbolProvider(SymbolProvider delegate) {
            this.delegate = delegate;
            return this;
        }
Sets the delegate symbol provider.

<p>This is only required when calling {@link #build} to build
a {@code SymbolProvider} that delegates to another provider.

@param delegate Symbol provider to delegate to.
@return Returns the builder
smithy-codegen-core/src/main/java/software/amazon/smithy/codegen/core/ReservedWordSymbolProvider.java