support `rescue` event for TracePoint #696

Job	Run time
make (check, cppflags=-DVM_CHECK_MODE)	12m 33s
make (check, i686)	12m 58s
make (check, --enable-shared --enable-load-relative)	9m 34s
make (test-all TESTS=--repeat-count=2)	21m 40s
make (test-all TESTS=--repeat-count=2, cppflags=-DUNIVERSAL_PARSER)	22m 4s
make (test-bundler-parallel)	33m 57s
make (test-bundled-gems)	18m 5s
	2h 10m 51s

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