$ NO_COLOR="1" print_instructions .
  <DECLARATION: EmptyString> [
    [CONSTANTS]
    0x00000000 (00000000) : ""
    0x00000001 (00000001) : <FUNCTION> [
      0000 I_Constant 0x00000000 (00000000)
      0005 I_Return
    ]
    
    [INSTRUCTIONS]
    0000 I_Closure 0x00000001 (00000001) (free variables: 0)
    0009 I_Call 0
    0014 I_Halt
  ]
  
  <DECLARATION: String> [
    [CONSTANTS]
    0x00000000 (00000000) : "Hello!"
    0x00000001 (00000001) : <FUNCTION> [
      0000 I_Constant 0x00000000 (00000000)
      0005 I_Return
    ]
    
    [INSTRUCTIONS]
    0000 I_Closure 0x00000001 (00000001) (free variables: 0)
    0009 I_Call 0
    0014 I_Halt
  ]
  
  <DECLARATION: StringConcat> [
    [CONSTANTS]
    0x00000000 (00000000) : "Hello "
    0x00000001 (00000001) : "World"
    0x00000002 (00000002) : "!"
    0x00000003 (00000003) : <FUNCTION> [
      0000 I_Constant 0x00000000 (00000000)
      0005 I_Constant 0x00000001 (00000001)
      0010 I_Concat
      0011 I_Constant 0x00000002 (00000002)
      0016 I_Concat
      0017 I_Return
    ]
    
    [INSTRUCTIONS]
    0000 I_Closure 0x00000003 (00000003) (free variables: 0)
    0009 I_Call 0
    0014 I_Halt
  ]
  
  <DECLARATION: StringInterpolation> [
    [CONSTANTS]
    0x00000000 (00000000) : "World"
    0x00000001 (00000001) : "Hello "
    0x00000002 (00000002) : "!"
    0x00000003 (00000003) : <FUNCTION> [
      0000 I_Constant 0x00000000 (00000000)
      0005 I_Set_Local 0x00000000 (00000000)
      0010 I_Null
      0011 I_Pop
      0012 I_Constant 0x00000001 (00000001)
      0017 I_Get_Local 0x00000000 (00000000)
      0022 I_Concat
      0023 I_Constant 0x00000002 (00000002)
      0028 I_Concat
      0029 I_Return
    ]
    
    [INSTRUCTIONS]
    0000 I_Closure 0x00000003 (00000003) (free variables: 0)
    0009 I_Call 0
    0014 I_Halt
  ]