array: fix memory overlap when removing from array by index. (#42) #158

Job	Run time
CentOS 7 build to confirm no issues once used downstream	1m 44s
Debian Buster build to confirm no issues once used downstream	31s
Build with various code analysis tools (clang-sanitize-address)	23s
Build sources on MSYS2 for windows-latest	3m 55s
Build with various code analysis tools (clang-sanitize-memory)	20s
Build sources on MSYS2 for windows-2019	4m 17s
Build with various code analysis tools (clang-sanitize-undefined)	21s
Build with various code analysis tools (clang-sanitize-dataflow)	36s
Build sources on arm64 for ubuntu-latest - gcc	2m 40s
Build with various code analysis tools (clang-sanitize-safe-stack)	21s
Build sources on amd64 for windows-latest	13s
Build sources on amd64 for ubuntu-latest - gcc	57s
Build sources on arm64 for ubuntu-latest - clang	2m 58s
Build with various code analysis tools (valgrind)	21s
Build sources on amd64 for windows-2019	46s
Build sources on amd64 for ubuntu-latest - clang	7s
Build sources on amd64 for macos-latest - gcc	27s
Build sources on amd64 for macos-latest - clang	21s
	21m 18s

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