Skip IsRegularFileOrPipe() check on Emscripten #7

Job	Run time
Create test plan	4s
level1 / Haiku	2m 1s
level2 / Windows (msys2, mingw32)	5m 11s
level2 / iOS (CMake & xcode)	2m 5s
level2 / Windows (msys2, clang64)	3m 38s
level2 / Windows (MSVC, x64)	4m 20s
level2 / Watcom (Windows)	1m 19s
level2 / Windows (MSVC, static VCRT, x64)	2m 14s
level2 / Windows (msys2, clang32)	4m 21s
level2 / MacOS (GNU prefix)	2m 57s
level2 / Windows (MSVC, clang-cl x64)	3m 56s
level2 / Steam Linux Runtime (Sniper)	2m 53s
level2 / UWP (MSVC, x64)	2m 31s
level2 / RISC OS	59s
level2 / Windows (MSVC, ARM64)	2m 39s
level2 / Ubuntu 20.04 (Intel Compiler)	4m 48s
level2 / Watcom (OS/2)	1m 3s
level2 / Ubuntu 20.04	4m 55s
level2 / Android (CMake)	1m 31s
level2 / Sony PlayStation Portable	2m 15s
level2 / tvOS (CMake & xcode)	1m 42s
level2 / Sony PlayStation Vita (GLES w/ pib)	2m 3s
level2 / Windows (MSVC, clang-cl x86)	4m 2s
level2 / Windows (msys2, ucrt64)	5m 38s
level2 / GDK (MSVC, x64)	2m 42s
level2 / Ubuntu 22.04	4m 4s
level2 / Windows (msys2, mingw64)	5m 17s
level2 / NetBSD	5m 38s
level2 / Windows (MSVC, static VCRT, x86)	2m 20s
level2 / Ubuntu 20.04 (Intel oneAPI)	5m 5s
level2 / Sony PlayStation 2	3m 7s
level2 / Emscripten	5m 17s
level2 / Windows (MSVC, ARM)	2m 55s
level2 / Android (Android.mk)	2m 5s
level2 / FreeBSD	3m 57s
level2 / Nintendo 3DS	1m 2s
level2 / Windows (MSVC, x86)	4m 22s
level2 / Sony PlayStation Vita (GLES w/ PVR_PSP2)	2m 3s
	1h 58m 59s

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