relax test on 32-bit (overflow to float)
relax test on 32-bit (overflow to float)

bd808/pecl-file_formats-yaml,php/pecl-file_formats-yaml,php/pecl-file_formats-yaml,php/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,bd808/pecl-file_formats-yaml,php/pecl-file_formats-yaml