Enables per-function far-branches for ARM and MIPS.

runtime/vm/assembler.cc

Index: runtime/vm/assembler.cc
===================================================================
--- runtime/vm/assembler.cc	(revision 25720)
+++ runtime/vm/assembler.cc	(working copy)
@@ -15,13 +15,11 @@
 
 DEFINE_FLAG(bool, code_comments, false,
             "Include comments into code and disassembly");
-// TODO(zra): Remove once far branches are enabled automatically on a
-// per-function basis.
 #if defined(TARGET_ARCH_ARM) || defined(TARGET_ARCH_MIPS)
-DEFINE_FLAG(bool, use_far_branches, false, "Enable far branches");
+DEFINE_FLAG(bool, use_far_branches, false,
+            "Enable far branches for ARM and MIPS");
 #endif
 
-
 static uword NewContents(intptr_t capacity) {
   Zone* zone = Isolate::Current()->current_zone();
   uword result = zone->AllocUnsafe(capacity);