feat(material-experimental/mdc-autocomplete): implement MDC-based mat-autocomplete #20247
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mat-autocomplete
using the logic from the existing one and the styling from MDC.The MDC-based autocomplete behaves identically to the existing one, with the only minor difference being that MDC one fixes a long-standing issue where we expect a hardcoded height for each of the options. It was easier to fix the bug and add logic to support arbitrary option heights than to add more logic to account for MDC's styles.
Note: I will make a follow-up PR that adds test harnesses for the new module. I didn't add them here, because the PR is fairly large as it is.