public void forEachInsn(SsaInsn.Visitor visitor) {
    for (SsaBasicBlock block : blocks) {
      block.forEachInsn(visitor);
    }
  }
Visits all insns in this method.

@param visitor {@code non-null;} callback interface
android/android_framework/dex-maker/src/main/java/com/android/dx/ssa/SsaMethod.java