Fixed some static analyzer errors #1140

Job	Run time
build-macos-13	17s
wasm-clang-make	15s
build-macos-12	18s
Build stdlib from source (gcc, make)	16s
ubuntu-22.04-clang-make	12s
Build stdlib from source (gcc, bmake)	20s
build-macos-11	18s
ubuntu-22.04-gcc-make	8s
ubuntu-20.04-clang-make	14s
windows-2019-mingw64	1m 26s
Clang - static analysis	32s
windows-2019-mingw32	1m 24s
Valgrind - memory leak check	47s
ubuntu-20.04-gcc-make	13s
windows-2019-ucrt64	1m 36s
ubuntu-22.04-gcc-bmake	20s
windows-2019-clang64	1m 32s
windows-2019-clang32	1m 34s
windows-2022-mingw64	1m 29s
windows-2022-mingw32	1m 28s
windows-2022-ucrt64	1m 31s
windows-2022-clang64	1m 28s
windows-2022-clang32	1m 32s
Static checks	0s
${{ matrix.buildtype }}-macos	0s
${{ matrix.buildtype }}-linux	0s
release.wasm	0s
release-${{ matrix.sys }}-windows	0s
	19m 10s

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