Fix cpplint readability/fn_size issues

Change-Id: I1efdb07a948a2af49db1a9d21ccab16dacc03a54
diff --git a/compiler/dex/portable/mir_to_gbc.cc b/compiler/dex/portable/mir_to_gbc.cc
index 85ffec5..ad7a6a8 100644
--- a/compiler/dex/portable/mir_to_gbc.cc
+++ b/compiler/dex/portable/mir_to_gbc.cc
@@ -1500,7 +1500,7 @@
       res = true;
   }
   return res;
-}
+}  // NOLINT(readability/fn_size)
 
 void MirConverter::SetDexOffset(int32_t offset) {
   current_dalvik_offset_ = offset;
diff --git a/compiler/dex/quick/mir_to_lir.cc b/compiler/dex/quick/mir_to_lir.cc
index b758fb5..74eaa66 100644
--- a/compiler/dex/quick/mir_to_lir.cc
+++ b/compiler/dex/quick/mir_to_lir.cc
@@ -655,7 +655,7 @@
     default:
       LOG(FATAL) << "Unexpected opcode: " << opcode;
   }
-}
+}  // NOLINT(readability/fn_size)
 
 // Process extended MIR instructions
 void Mir2Lir::HandleExtendedMethodMIR(BasicBlock* bb, MIR* mir) {
diff --git a/compiler/llvm/gbc_expander.cc b/compiler/llvm/gbc_expander.cc
index a2c6998..a7793ae 100644
--- a/compiler/llvm/gbc_expander.cc
+++ b/compiler/llvm/gbc_expander.cc
@@ -3791,7 +3791,7 @@
   }
   UNIMPLEMENTED(FATAL) << "Unexpected GBC intrinsic: " << static_cast<int>(intr_id);
   return NULL;
-}
+}  // NOLINT(readability/fn_size)
 
 } // anonymous namespace