Fix ASAN after r30777

TBR=bmeurer,yurys
NOTRY=true

Review URL: https://codereview.chromium.org/1349953002

Cr-Commit-Position: refs/heads/master@{#30779}

src/sampler.cc

@@ -184,7 +184,7 @@ bool IsSamePage(byte* ptr1, byte* ptr2) {
 
 // Check if the code at specified address could potentially be a
 // frame setup code.
-bool IsNoFrameRegion(Address address) {
+DISABLE_ASAN bool IsNoFrameRegion(Address address) {
   struct Pattern {
     int bytes_count;
     byte bytes[8];