Fix debug-only compilation failures.
Fix debug-only compilation failures.

Fix debug-only compilation failures introduced by changes to
prof_sample_accum_update() in:

    6c39f9e059d0825f4c29d8cec9f318b798912c3c
    refactor profiling. only use a bytes till next sample variable.

8l/jemalloc,glandium/jemalloc,cpeterso/jemalloc,tempbottle/jemalloc,CMRemix/android_external_jemalloc,dxq-git/jemalloc,shekkbuilder/jemalloc,TeamExodus/external_jemalloc,garoose/jemalloc,awreece/jemalloc,CyanogenMod/android_external_jemalloc,wespelee/jemalloc,yy-nm/jemalloc,wqfish/jemalloc,8l/jemalloc,Snaipe/jemalloc,VRToxin/android_external_jemalloc,geekboxzone/mmallow_external_jemalloc,lilothar/jemalloc,wqfish/jemalloc,leebaok/jemalloc-4.2.1-readcode,sudosurootdev/external_jemalloc,AndroidExternal/jemalloc,geekboxzone/mmallow_external_jemalloc,android-ia/platform_external_jemalloc,xin3liang/platform_external_jemalloc,tempbottle/jemalloc,cpeterso/jemalloc,garoose/jemalloc,CyanogenMod/android_external_jemalloc,Dmitry-Me/jemalloc,sudosurootdev/external_jemalloc,jemalloc/jemalloc-cmake,jemalloc/jemalloc-cmake,kmiku7/jemalloc,VRToxin/android_external_jemalloc,lvfeng1130/jemalloc,TeamExodus/external_jemalloc,shekkbuilder/jemalloc,tempbottle/jemalloc,wqfish/jemalloc,8l/jemalloc,wfxiang08/jemalloc,VRToxin/android_external_jemalloc,android-ia/platform_external_jemalloc,android-ia/platform_external_jemalloc,lvfeng1130/jemalloc,yy-nm/jemalloc,leebaok/jemalloc-4.2.1-readcode,AndroidExternal/jemalloc,shekkbuilder/jemalloc,xin3liang/platform_external_jemalloc,lvfeng1130/jemalloc,awreece/jemalloc,kmiku7/jemalloc,geekboxzone/lollipop_external_jemalloc,wespelee/jemalloc,vashstorm/jemalloc,Dmitry-Me/jemalloc,xin3liang/platform_external_jemalloc,Snaipe/jemalloc,kmiku7/jemalloc,glandium/jemalloc,dxq-git/jemalloc,Snaipe/jemalloc,tempbottle/jemalloc,vashstorm/jemalloc,sudosurootdev/external_jemalloc,wqfish/jemalloc,geekboxzone/mmallow_external_jemalloc,lilothar/jemalloc,jemalloc/jemalloc-cmake,xin3liang/platform_external_jemalloc,geekboxzone/mmallow_external_jemalloc,CyanogenMod/android_external_jemalloc,leebaok/jemalloc-4.2.1-readcode,glandium/jemalloc,wespelee/jemalloc,CMRemix/android_external_jemalloc,Dmitry-Me/jemalloc,vashstorm/jemalloc,ahmetmircik/jemalloc,flyfeifan/jemalloc,wfxiang08/jemalloc,yy-nm/jemalloc,geekboxzone/lollipop_external_jemalloc,awreece/jemalloc,cpeterso/jemalloc,garoose/jemalloc,wfxiang08/jemalloc,CyanogenMod/android_external_jemalloc,TeamExodus/external_jemalloc,AndroidExternal/jemalloc,dxq-git/jemalloc,flyfeifan/jemalloc,shekkbuilder/jemalloc,kmiku7/jemalloc,dxq-git/jemalloc,geekboxzone/lollipop_external_jemalloc,wespelee/jemalloc,yy-nm/jemalloc,CMRemix/android_external_jemalloc,glandium/jemalloc,sudosurootdev/external_jemalloc,lilothar/jemalloc,jemalloc/jemalloc-cmake,wqfish/jemalloc,wfxiang08/jemalloc,AndroidExternal/jemalloc,flyfeifan/jemalloc,awreece/jemalloc,ahmetmircik/jemalloc,VRToxin/android_external_jemalloc,lvfeng1130/jemalloc,garoose/jemalloc,android-ia/platform_external_jemalloc,8l/jemalloc,TeamExodus/external_jemalloc,Dmitry-Me/jemalloc,ahmetmircik/jemalloc,CMRemix/android_external_jemalloc,flyfeifan/jemalloc,leebaok/jemalloc-4.2.1-readcode,vashstorm/jemalloc,Snaipe/jemalloc,cpeterso/jemalloc,lilothar/jemalloc,ahmetmircik/jemalloc,geekboxzone/lollipop_external_jemalloc