Make scanner accept based floating point literals #19129

Job	Run time
Event File	4s
Build Erlang/OTP (64-bit)	7m 25s
Build Erlang/OTP (iOS)	3m 51s
Build Erlang/OTP (Windows)	17m 55s
Build Erlang/OTP (32-bit)	9m 10s
Build Erlang/OTP (Types and Flavors)	9m 31s
Build Erlang/OTP (cross-compile)	14m 54s
Build Erlang/OTP (macOS)	2m 47s
Build Erlang/OTP (clang)	5m 10s
Build and check documentation	4m 55s
Run static analysis	6m 17s
Test Erlang/OTP (stdlib)	1h 8m 44s
Release Erlang/OTP	0s
Test Erlang/OTP (system)	7m 10s
	2h 37m 53s

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