Improvement for calculation of heuristic multipliers

[dmitripivkine]

Use floats to calculate more accurate result.

Fixes eclipse-openj9/openj9#17534

[dmitripivkine]

@amicic Would you please review?

[dmitripivkine]

@babsingh Would you please help with this item?

[babsingh]

https://dev.azure.com/eclipse-omr/ea4519db-b27e-4d19-a971-f01491f803e3/_apis/build/builds/7648/logs/36

There are errors in the Windows PR build related to possible loss of data:

2023-06-06T20:34:51.6939462Z D:\a\1\s\gc\base\MemorySubSpaceUniSpace.cpp(709,29): error C2220: the following warning is treated as an error [D:\a\1\s\build\gc\omrgc.vcxproj]
2023-06-06T20:34:51.6944362Z D:\a\1\s\gc\base\MemorySubSpaceUniSpace.cpp(709,29): warning C4244: 'initializing': conversion from 'double' to 'float', possible loss of data [D:\a\1\s\build\gc\omrgc.vcxproj]
2023-06-06T20:34:51.6950635Z D:\a\1\s\gc\base\MemorySubSpaceUniSpace.cpp(733,29): warning C4244: 'initializing': conversion from 'double' to 'float', possible loss of data [D:\a\1\s\build\gc\omrgc.vcxproj]

[amicic]

https://dev.azure.com/eclipse-omr/ea4519db-b27e-4d19-a971-f01491f803e3/_apis/build/builds/7648/logs/36

There are errors in the Windows PR build related to possible loss of data:

2023-06-06T20:34:51.6939462Z D:\a\1\s\gc\base\MemorySubSpaceUniSpace.cpp(709,29): error C2220: the following warning is treated as an error [D:\a\1\s\build\gc\omrgc.vcxproj]
2023-06-06T20:34:51.6944362Z D:\a\1\s\gc\base\MemorySubSpaceUniSpace.cpp(709,29): warning C4244: 'initializing': conversion from 'double' to 'float', possible loss of data [D:\a\1\s\build\gc\omrgc.vcxproj]
2023-06-06T20:34:51.6950635Z D:\a\1\s\gc\base\MemorySubSpaceUniSpace.cpp(733,29): warning C4244: 'initializing': conversion from 'double' to 'float', possible loss of data [D:\a\1\s\build\gc\omrgc.vcxproj]

I'm guessing 2.0 is a double, should use 2.0f (or cast)

[babsingh]

jenkins build all