Migrate logging infrastructure Isolate->Thread

runtime/vm/locations.h

Index: runtime/vm/locations.h
diff --git a/runtime/vm/locations.h b/runtime/vm/locations.h
index 48fbd6f43f9d147feb1fcc8cf65edd9e45967a1d..5e92c1612aeb2479b821c8be586eaba67df4f0f6 100644
--- a/runtime/vm/locations.h
+++ b/runtime/vm/locations.h
@@ -519,7 +519,7 @@ class RegisterSet : public ValueObject {
     for (intptr_t i = 0; i < kNumberOfCpuRegisters; i++) {
       Register r = static_cast<Register>(i);
       if (ContainsRegister(r)) {
-        ISL_Print("%s %s\n", Assembler::RegisterName(r),
+        THR_Print("%s %s\n", Assembler::RegisterName(r),
                            IsTagged(r) ? "tagged" : "untagged");
       }
     }
@@ -527,7 +527,7 @@ class RegisterSet : public ValueObject {
     for (intptr_t i = 0; i < kNumberOfFpuRegisters; i++) {
       FpuRegister r = static_cast<FpuRegister>(i);
       if (ContainsFpuRegister(r)) {
-        ISL_Print("%s\n", Assembler::FpuRegisterName(r));
+        THR_Print("%s\n", Assembler::FpuRegisterName(r));
       }
     }
   }