RFR: 8310332: Fix -Wconversion warnings in MethodData [v2]

[Coleen Phillimore]

On Tue, 20 Jun 2023 12:56:07 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> src/hotspot/share/oops/methodData.cpp line 483:
>> 
>>> 481:   for (uint row = 0; row < row_limit(); row++) {
>>> 482:     if (bci(row) == no_bci) {
>>> 483:       set_bci_displacement(row, (int)(mdp - dp()));
>> 
>> `checked_cast` here?
>
> I picked a straight cast because dp() is the address of _data inside this mdp, but now I'm not so sure.  I'll change this one.

I reran tier1 tests on the change, just to be sure.

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PR Review Comment: https://git.openjdk.org/jdk/pull/14557#discussion_r1235255321