fix TracePoint#return_value with non-local exits

	* vm.c: get return_value from imemo_throw_data object (THROW_DATA_VAL()).
	  imemo_throw_data (TAG_BREAK) contains returned value.
	  However, imemo_throw_data (TAG_BREAK) can skip several frames so that
	  we need to use it only once (at most internal frame). To record it,
	  we introduced THROW_DATA_CONSUMED and check it.

	* internal.h: define THROW_DATA_CONSUMED flag.

	* test/ruby/test_settracefunc.rb: add tests for [Bug #13369]

	* vm_insnhelper.h: add THROW_DATA_CONSUMED_P() and
	  THROW_DATA_CONSUMED_SET().

	internal.h: parenthesize macro argument

	* internal.h (THROW_DATA_P): parenthesize the argument which is
	  casted.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_3@59547 b2dd03c8-39d4-4d8f-98ff-823fe69b080e