Do not allow name characters immediately after a number #18242

Job	Run time
Build Erlang/OTP (64-bit)	5m 28s
Event File	2s
Build Erlang/OTP (iOS)	3m 45s
Build Erlang/OTP (Types and Flavors)	7m 39s
Build Erlang/OTP (Windows)	10m 18s
Build Erlang/OTP (32-bit)	9m 3s
Build Erlang/OTP (macOS)	3m 21s
Build and check documentation	4m 52s
Build Erlang/OTP (cross-compile)	14m 6s
Run static analysis	6m 7s
Build Erlang/OTP (clang)	5m 15s
Test Erlang/OTP (stdlib)	1h 8m 14s
Release Erlang/OTP	0s
Test Erlang/OTP (system)	8m 36s
	2h 26m 46s

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