RFR: JDK-8310835: Address gaps in -Xlint:serial checks

[Roger Riggs]

On Sat, 24 Jun 2023 22:27:32 GMT, Joe Darcy <darcy at openjdk.org> wrote:

> Improve serial lint messages for externalizable records (and potentially other situations).

src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Check.java line 5429:

> 5427:                                                  MethodSymbol method,
> 5428:                                                  Type expectedType) {
> 5429:             var parameters= method.getParameters();

Missing space before "=".

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PR Review Comment: https://git.openjdk.org/jdk/pull/14639#discussion_r1263819068