Andrew Scott 46ea684351 refactor(compiler-cli): find symbol for output when there is a two way binding (#40185)
This commit fixes the Template Type Checker's `getSymbolOfNode` so that
it is able to retrieve a symbol for the `BoundEvent` of a two-way
binding. Previously, the implementation would locate the node in the TCB
for the input because it appeared first and shares the same `keySpan` as
the event binding. To fix this, the TCB node search now verifies that
the located node matches the expected name for the output subscription:
either `addEventListener` for a native listener  or the class member of the Angular `@Output`
in the case of an Angular output, as would be the case for two-way
bindings.

PR Close #40185
2021-01-07 13:18:38 -08:00
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