Fixing crash bug in TokenStreamRewriter #1031

Job	Run time
cpp-lib-build (macos-11, clang, ON)	7m 41s
cpp-lib-build (macos-11, clang, OFF)	8m 15s
build (macos-11, tool)	1m 54s
cpp-lib-build (macos-11, gcc, ON)	7m 52s
build (macos-11, cpp)	34m 8s
cpp-lib-build (macos-11, gcc, OFF)	8m 30s
build (macos-11, csharp)	9m 21s
cpp-lib-build (ubuntu-20.04, clang, ON)	3m 19s
build (macos-11, dart)	6m 21s
cpp-lib-build (ubuntu-20.04, clang, OFF)	3m 26s
build (macos-11, go)	4m 35s
cpp-lib-build (ubuntu-20.04, gcc, ON)	3m 17s
build (macos-11, java)	2m 0s
cpp-lib-build (ubuntu-20.04, gcc, OFF)	3m 22s
build (macos-11, javascript)	2m 31s
cpp-lib-build (windows-2022, clang, ON)	4m 28s
build (macos-11, typescript)	19m 16s
cpp-lib-build (windows-2022, clang, OFF)	5m 33s
build (macos-11, php)	21s
cpp-lib-build (windows-2022, cl)	4m 23s
build (macos-11, python3)	2m 4s
build (ubuntu-20.04, tool)	56s
build (ubuntu-20.04, cpp)	17m 27s
build (ubuntu-20.04, csharp)	5m 7s
build (ubuntu-20.04, dart)	3m 20s
build (ubuntu-20.04, go)	2m 14s
build (ubuntu-20.04, java)	1m 2s
build (ubuntu-20.04, javascript)	1m 23s
build (ubuntu-20.04, typescript)	10m 4s
build (ubuntu-20.04, php)	3m 45s
build (ubuntu-20.04, python3)	1m 8s
build (windows-2022, tool)	1m 23s
build (windows-2022, cpp)	21m 15s
build (windows-2022, csharp)	6m 1s
build (windows-2022, dart)	4m 1s
build (windows-2022, go)	4m 37s
build (windows-2022, java)	1m 46s
build (windows-2022, javascript)	2m 6s
build (windows-2022, typescript)	22m 3s
build (windows-2022, php)	1m 56s
build (windows-2022, python3)	1m 41s
	4h 15m 52s

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