Select rand_rangeXX() variant only based on the requested range
#9418
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This fixes an incompatibility when wrapping native 32-bit engines with a userland engine. The latter always used the 64-bit range function which then used two 32-bit numbers from the underlying engine to fill the 64-bit range, whereas the native implementation used only one. Now the selection of the range variant only depends on the requested range. A 32-bit range uses the 32-bit variant (even for 64-bit engines), whereas a larger range uses the 64-bit variant. This was found in php#9410 (comment)
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This fixes an incompatibility when wrapping native 32-bit engines with a userland
engine. The latter always used the 64-bit range function which then used two
32-bit numbers from the underlying engine to fill the 64-bit range, whereas the
native implementation used only one.
Now the selection of the range variant only depends on the requested range. A
32-bit range uses the 32-bit variant (even for 64-bit engines), whereas a
larger range uses the 64-bit variant.
This was found in #9410 (comment)