[arm] Fix missing CheckBuffer for branches.

src/arm/assembler-arm.cc

Index: src/arm/assembler-arm.cc
diff --git a/src/arm/assembler-arm.cc b/src/arm/assembler-arm.cc
index de49bb185f106aefe58a0db91b4fb835ecf75b92..72786597f0ecfc7b2236dabd055dc9d24e548d70 100644
--- a/src/arm/assembler-arm.cc
+++ b/src/arm/assembler-arm.cc
@@ -1377,6 +1377,24 @@ void Assembler::bx(Register target, Condition cond) {  // v5 and above, plus v4t
 }
 
 
+void Assembler::b(Label* L, Condition cond) {
+  CheckBuffer();
+  b(branch_offset(L), cond);
+}
+
+
+void Assembler::bl(Label* L, Condition cond) {
+  CheckBuffer();
+  bl(branch_offset(L), cond);
+}
+
+
+void Assembler::blx(Label* L) {
+  CheckBuffer();
+  blx(branch_offset(L));
+}
+
+
 // Data-processing instructions.
 
 void Assembler::and_(Register dst, Register src1, const Operand& src2,