[code-reflection] RFR: [samples] Apply type conversion for the int-shift function after the new result op has been built

[Juan Fumero]

This patch fixes the example suite for the `MathOptimizer` example for the integer function transformation.

To me the transformation correct, we need to convert back from `int` to `double`:


newResult = blockBuilder.op(JavaOp.conv(JavaType.DOUBLE, newResult));


How to test it?


java --enable-preview -cp target/crsamples-1.0-SNAPSHOT.jar oracle.code.samples.MathOptimizer

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Commit messages:
 - [samples] Apply type conversion for the int-shift function after the new result op has been built

Changes: https://git.openjdk.org/babylon/pull/528/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=528&range=00
  Stats: 21 lines in 3 files changed: 18 ins; 3 del; 0 mod
  Patch: https://git.openjdk.org/babylon/pull/528.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/528/head:pull/528

PR: https://git.openjdk.org/babylon/pull/528