public boolean branchFits(TargetInsn insn) {
    return false;
  }
Returns whether or not the given instruction's branch offset will fit in this instance's
format. This always returns {@code false} for formats that don't include a branch offset.

<p>The default implementation of this method always returns {@code false}. Subclasses must
override this method if they include branch offsets.

@param insn {@code non-null;} the instruction to check
@return {@code true} iff the instruction's branch offset is appropriate for this instance, or
    {@code false} if not
android/android_framework/dex-maker/src/main/java/com/android/dx/dex/code/InsnFormat.java